@string{AG      ={Ann.\ Geophys.} }
@string{AJ      ={Astron.\ J.} }
@string{AJP     ={Am.\ J.\ Phys.} }
@string{AO      ={Appl.\ Opt.} }
@string{AREPS   ={Ann.\ Rev.\ Earth Planet.\ Sci.} }
@string{ARFM    ={Ann.\ Rev.\ Fluid Mech.} }
@string{ARMA    ={Arch.\ Rat.\ Mech.\ Anal.} }
@string{ASR     ={Adv.\ Space Res.} }
@string{BG      ={Bull.\ Geod.} }
@string{BIM     ={Bull.\ Inf.\ Mar\'{e}es Terrestres} }
@string{CC      ={Climate Change} }
@string{CD      ={Climate Dynamics} }
@string{CMP     ={Commun.\ Math.\ Phys.} }
@string{EMP     ={Earth, Moon and Planets} }
@string{EOS     ={Eos, Trans.\ Am.\ Geophys.\ Union} }
@string{EPSL    ={Earth Planet.\ Sci.\ Lett.} }
@string{GAFD    ={Geophys.\ Astrophys.\ Fluid Dynam.} }
@string{GEOLOGY ={Geology} }
@string{GJ      ={Geophys.\ J.} }
@string{GJI     ={Geophys.\ J.\ Int.} }
@string{GJRAS   ={Geophys.\ J.\ R.\ Astron.\ Soc.} }
@string{GPC     ={Global and Planetary Change} }
@string{GRA     ={Geophys.\ Res.\ Abstracts} }
@string{GRL     ={Geophys.\ Res.\ Lett.} }
@string{ICARUS  ={Icarus} }
@string{IJSS    ={Int.\ J.\ Solids Structures} }
@string{JAS     ={J.\ Atmos.\ Sci.} }
@string{JC      ={J.\ Climatology} }
@string{JFI     ={J.\ Franklin Inst.} }
@string{JGEODYN ={J.\ Geodynamics} }
@string{JGEOPHY ={J.\ Geophys.} }
@string{JGR     ={J.\ Geophys.\ Res.} }
@string{JMP     ={J.\ Math.\ Phys.} }
@string{JOSAB   ={J.\ Opt.\ Soc.\ Am.\ B} }
@string{JPA     ={J.\ Phys.\ A: Gen.\ Phys.} }
@string{JPE     ={J.\ Phys.\ Earth} }
@string{JPO     ={J.\ Phys.\ Oceanogr.} }
@string{JQS     ={J.\ Quat.\ Sci.} }
@string{MG      ={Mar.\ Geodesy} }
@string{MZ      ={Math.\ Z.} }
@string{NATURE  ={Nature} }
@string{PCE     ={Phys.\ Chem.\ Earth} }
@string{PEPI    ={Phys.\ Earth Planet.\ Int.} }
@string{PLB     ={Phys.\ Lett.\ B} }
@string{PRA     ={Phys.\ Rev.\ A} }
@string{PRD     ={Phys.\ Rev.\ D} }
@string{PRSE    ={Proc.\ R.\ Soc.\ Edinburgh} }
@string{PRSLA   ={Proc.\ R.\ Soc.\ London A} }
@string{PT      ={Physics Today} }
@string{PTRSLA  ={Phil.\ Trans.\ R.\ Soc.\ London A} }
@string{QAM     ={Quart.\ Appl.\ Math.} }
@string{QSR     ={Quat.\ Sci.\ Rev.} }
@string{RG      ={Rev.\ Geophys.} }
@string{RGSP    ={Rev.\ Geophys.\ Space Phys.} }
@string{SCIENCE ={Science} }
@string{SG      ={Surveys Geophys.} }
@string{TC      ={Terra Cognita} }
@string{TECTPHY ={Tectonophysics} }
@string{TN      ={Terra Nova} }

@techreport{beutler++2005,
 author       ={Beutler, G. and Drewes, H. and Plag, H.-P. and Reigber, Ch. and
                Rothacher, M. and Rummel, R.},
 year         ={2005},
 title        ={{IAG GGOS Implementation Plan}},
 institution  ={GeoForschungZentrum Potsdam, Germany}
}

@unpublished{beutler++2003,
 author       ={Beutler, G. and Drewes, H. and Reigber, Ch. and Rummel, R.},
 year         ={2003},
 title        ={{Proposal to Establish the Integrated Global Geodetic Observing
                System (IGGOS) as IAG's First Project}},
 note         ={distributed to IVS and IGS mailing lists on 21 August 2003}
}
@inproceedings{drewes2006,
 author       ={Drewes, H.},
 year         ={2006},
 title        ={The science rationale of the {Global Geodetic Observing System}
                {GGOS}},
 pages        ={703-710},
 booktitle    ={Dynamic Planet -- Monitoring and Understanding a Dynamic Planet
                with Geodetic and Oceanographic Tools},
 publisher    ={Springer Verlag, Berlin},
 editor       ={Tregoning, P. and Rizos, C.},
 series       ={International Association of Geodesy Symposia},
 volume       ={130}
}

@inproceedings{pearlman++2006,
 author       ={Pearlman, M. and Altamimi, Z. and Beck, N. and Forsberg, R. and 
                Gurtner, W. and Kenyon, S. and Behrend, D. and Lemoine, F. G. and Ma, C. 
                and Noll, C. E. and Pavlis, E. C. and Malkin, Z. and 
                Moore, A. W. and Webb, F. H. and Neilan, R. E. and  Ries, J. C. and 
                Rothacher, M. and Willis, P.},
 year         ={2006},
 title        ={{GGOS Working Group on} ground networks and communications},
 booktitle    ={Dynamic Planet -- Monitoring and Understanding a Dynamic Planet
                with Geodetic and Oceanographic Tools},
 publisher    ={Springer Verlag, Berlin},
 editor       ={Tregoning, P. and Rizos, C.},
 series       ={International Association of Geodesy Symposia},
 volume       ={130},
 pages        ={719-726}
}

@unpublished{plag++2005g,
 author       ={Plag, H.-P. and Beutler, G. and Forsberg, R. and Ma, C. and
                Neilan, R. and Pearlman, M. and Richter, B. and Zerbini, S.},
 year         ={2005},
 title        ={The {Global Geodetic Observing System (GGOS)}: observing the
                dynamics of the {E}arth system},
 note         ={Available at http://www.unep.org/dewa/igos.}
}
@unpublished{plag++2005p,
 author       ={Plag, H.-P. and Willis, P. and Richter, B. and Altamimi, Z.},
 year         ={2005},
 title        ={Identification, quality control, copyright and certification
                issues associated with GGOS products},
 note         ={Position paper prepared for First GGOS Workshop, March 1-2,
                2005, Potsdam, Germany. Available at
                http://geodesy.unr.edu/ggos\_plmwg/}
}
@inproceedings{plag++2006h,
 author       ={Plag, H.-P. and Beutler, G. and Forsberg, R. and Ma, C. and
                Neilan, R. and Pearlman, M. and Richter, B. and Zerbini, S.},
 year         ={2006},
 title        ={Linking the {Global Geodetic Observing System (GGOS)} to the
                {Integrated Global Observing Strategy Partnership (IGOS-P)}
                through the {Theme 'Earth System Dynamics'}},
 pages        ={727-734},
 booktitle    ={Dynamic Planet -- Monitoring and Understanding a Dynamic Planet
                with Geodetic and Oceanographic Tools},
 publisher    ={Springer Verlag, Berlin},
 editor       ={Tregoning, P. and Rizos, C.},
 series       ={International Association of Geodesy Symposia},
 volume       ={130}
}

@article{pearlman++2007,
 author    ={Pearlman, M. and Altamimi, Z. and Beck, N. and Forsberg, R. and
             Gurtner, W. and Kenyon, S. and Behrend, D. and Lemoine, F.G. and 
             Ma, C. and Noll, C. E. and Pavlis, E. C. and Malkin, Z. and 
             Moore, A. W. and Webb, F. H. and Neilan, R. E. and Ries, J. C. 
             and Rothacher, M. and Willis, P.},
 year      ={2007},
 title     ={{Global Geodetic Observing System - Considerations for the 
             Geodetic Network Infrastructure}},
 journal   ={Geomatica}, 
 volume    ={60}, 
 number    ={2}, 
 pages     ={193-204}
}

@unpublished{plag+rot2006,
 title        ={{Earth System Dynamics: Toward a Theme proposal initiated by the  
                Global Geodetic Observing System (GGOS)
                of the
                International Association of Geodesy (IAG)}},
 author       ={Plag, H.-P. and Rothacher, M.},
 year         ={2006},
 note         ={Presentation at IGOS-P-13, Geneva, May 2006}
}

@unpublished{plag++2006s,
 title        ={{The Global Geodetic Observing System (GGOS)
                of the
                International Association of Geodesy (IAG)}},
 author       ={Plag, H.-P. and Rothacher, M. and Gross, R. and Bettadpur, S.},
 year         ={2006},
 note         ={Presentation at IGOS-P Theme Leader Meeting, Geneva, May 2006}
}

@article{plag++2007a,
 author     ={Plag, H.-P. and Blewitt, G. and Herring, T. A.},
 year       ={2007},
 title      ={Towards a Consistent Conventional Treatment of Surface-Load 
              Induced Deformations},
 note       ={Position Paper presented at the IERS Workshop on Conventions,
              September 20-21, 2007, Sevres, France. Available at
              http://www.bipm.org/en/events/iers/papers.html}
}

@article{plag2005a,
 author       ={Plag, H.-P.},
 year         ={2005},
 title        ={The {GGOS} as the backbone for global observing and local
                monitoring: a user driven perspective},
 journal      =JGEODYN,
 volume       ={40},
 pages        ={479-486},
 note         ={doi:10.1016/j.jog.2005.06.012}
}

@inproceedings{plag2005j,
 author       ={Plag, H.-P.},
 year         ={2005},
 title        ={The {Global Geodetic Observing System and how it relates to
                IGOS Geohazards}},
 booktitle    ={IGOS Geohazards Workshop, 27-29 June 2005, Orleans, France:
                Programme and Abstracts},
 pages        ={Abstract, invited presentation.}
}

@article{poutanen++2005a,
 author       ={Poutanen, M. and Knudsen, P. and Lilje, M. and Plag, H.-P. and
                Scherneck, H.-G.},
 year         ={2005},
 title        ={NGOS - {The Nordic Geodetic Observing System}},
 journal      ={nordic journal},
 volume       ={2},
 pages        ={77-98}
}

@inproceedings{poutanen++2006,
 author       ={Poutanen, M. and Knudsen, P. and Lilje, M. and Norbech, T. and
                Plag, H.-P. and Scherneck, H.-G.},
 year         ={2006},
 title        ={The Nordic Geodetic Observing System},
 pages        ={749-756},
 booktitle    ={Dynamic Planet -- Monitoring and Understanding a Dynamic Planet
                with Geodetic and Oceanographic Tools},
 publisher    ={Springer Verlag, Berlin},
 editor       ={Tregoning, P. and Rizos, C.},
 series       ={International Association of Geodesy Symposia},
 volume       ={130}
}

@inproceedings{plag2006f,
 author       ={Plag, H.-P.},
 year         ={2006},
 title        ={{GGOS} and it User Requirements, Linkage and Outreach},
 pages        ={711-718},
 booktitle    ={Dynamic Planet -- Monitoring and Understanding a Dynamic Planet
                with Geodetic and Oceanographic Tools},
 publisher    ={Springer Verlag, Berlin},
 editor       ={Tregoning, P. and Rizos, C.},
 series       ={International Association of Geodesy Symposia},
 volume       ={130}
}

@inproceedings{rummel++2002,
 author       ={Rummel, R. and Drewes, H. and Beutler, G},
 editor       ={Adam, J. and Schwarx, K.-P.},
 year         ={2002},
 title        ={{Integrated Global Geodetic Observing System (IGGOS): A
                candidate IAG project}},
 booktitle    ={Vistas for Geodesy in the New Millennium},
 series       ={International Association of Geodesy Symposia},
 volume       ={125},
 pages        ={609-614},
 publisher    ={Springer, Berlin}
}
@article{rummel++2005,
 author       ={Rummel, R. and Rothacher, M. and Beutler, G.},
 year         ={2005},
 title        ={{Global Geodetic Observing System (GGOS): Science rationale}},
 journal      =JGEODYN,
 volume       ={40},
 pages        ={357-362}
}
@inproceedings{rummel2000,
 author       ={Rummel, R.},
 editor       ={Rummel, R. and Drewes, H. and Bosch, W. and Hornik, H.},
 year         ={2000},
 title        ={{Global Integrated Geodetic and Geodynamic Observing System
                (GIGGOS)}},
 booktitle    ={Towards an Integrated Global Geodetic Observing System},
 series       ={International Association of Geodesy Symposia},
 volume       ={120},
 pages        ={253-260},
 publisher    ={Springer, Berlin}
}

@incollection{plag++2007,
 author    ={Plag, H.-P. and Altamimi, Z. and Bettadpur, S. and Beutler, G. and 
             Beyerle, G. and Cazenave, A. and Crossley, D. and Donnellan, A. and
             Forsberg, R. and Gross, R. and Hinderer, J. and Komjathy, A. and 
             Mannucci, A. J. and Ma, C. and Noll, C. and Nothnagel, A. and
             Pavlis, E. C. and Pearlman, M. and Poli, P. and Schreiber, U. and
             Senior, K. and Woodworth, P. and Zuffada, C.},
 title     ={The goals, achievements, and tools of modern geodesy},
 editor    ={Plag, H.-P. and Pearlman, M.},
 booktitle ={The Global Geodetic Observing System: Meeting the Requirements of 
             a Global Society on a Changing Planet in 2020 -- The Reference 
             Document},
 year      ={2007},
 publisher ={Global Geodetic Observing System},
 note      ={available at http://geodesy.unr.edu/ggos/ggos2020/}
}

@incollection{herring++2007,
 author    ={Herring, T. A. and Altamimi, Z. and Plag, H.-P. and Poli, P. and Ray, J.},
 title     ={The future geodetic reference frame},
 editor    ={Plag, H.-P. and Pearlman, M.},
 booktitle ={The Global Geodetic Observing System: Meeting the Requirements of 
             a Global Society on a Changing Planet in 2020 -- The Reference 
             Document},
 year      ={2007},
 publisher ={Global Geodetic Observing System},
 note      ={available at http://geodesy.unr.edu/ggos/ggos2020/}
}

@incollection{gross++2007,
 author    ={Gross, R. and Beutler, G. and Plag, H.-P.},
 title     ={Integrated scientific and societal user requirements and functional
             specifications for the GGOS},
 editor    ={Plag, H.-P. and Pearlman, M.},
 booktitle ={The Global Geodetic Observing System: Meeting the Requirements of 
             a Global Society on a Changing Planet in 2020 -- The Reference 
             Document},
 year      ={2007},
 publisher ={Global Geodetic Observing System},
 note      ={available at http://geodesy.unr.edu/ggos/ggos2020/}
}