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Angermann D., Müller H.: On the strength of SLR observations to realize the scale and origin of the terrestrial reference system. In: Sideris, M.G. (Ed.): Observing our Changing Earth, IAG Symposia, Vol. 133, 21-27, DOI:10.1007/978-3-540-85426-5_3, 2009

Angermann D., Drewes H., Gerstl M., Krügel M., Meisel B.: DGFI combination methodology for ITRF2005 computation. In: Drewes, H. (Ed.): Geodetic Reference Frames, IAG Symposia, Vol. 134, 11-16, DOI:10.1007/978-3-642-00860-3_2, 2009

Angermann D., Drewes H., Kelm R., Meisel B., Seitz M., Tesmer V.: IERS Combination Research Centre at DGFI. IERS Annual Report 2007, Bundesamt für Kartographie und Geodäsie, Frankfurt a. M., 2009

Böhm J., Heinkelmann R., Schuh H.: Neutral atmosphere delays: empirical models versus discrete time series from numerical weather models. In: Geodetic Reference Frames, IAG Symposia, Vol. 134, H. Drewes (Ed.), ISSN 0939-9585, 317-321, 2009

Böhm J., Heinkelmann R., Mendes-Cerveira P., Pany A., Schuh H.: Atmosphere loading corrections at the observation level in VLBI analysis. Journal of Geodesy, Vol. 83, No. 11, 1107-1113, 2009

Bosch W., Savcenko R., Flechtner F., Dahle C., Mayer-Gürr T., Stammer D., Taguchi E., Ilk K.-H.: Residual ocean tides signals from satellite altimetry, GRACE gravity fields, and hydrodynamic modelling. Geophys. J. Int., DOI:10.1111/j.1365-246X.2009.04281.x, 2009

Bouman J., Rispens S., Gruber T., Koop R., Schrama E., Visser P., Tscherning C.C., Veicherts M.: Preprocessing of gravity gradients at the GOCE high-level processing facility. Journal of Geodesy, 83:659-678, DOI:10.1007/s00190-008-0279-9, 2009

Drewes H.: Reference Systems, Reference Frames, and the Geodetic Datum - Basic Considerations. In: Sideris, M.G. (Ed.): Observing our Changing Earth, IAG Symposia, Springer, Vol. 133, 3-9, 2009

Drewes H.: The actual plate kinematic and crustal deformation model APKIM2005 as basis for a non-rotating ITRF. In: Drewes, H. (Ed.): Reference Frames, IAG Symposia, Springer, Vol. 134, 95-99, 2009

Drewes H.: Geodetic Reference Frames - IAG Symposium, Munich, Germany, October 9-14, 2006. IAG Symposia, Springer, Vol. 134, 2009

Göttl F., Rummel R.: A Geodetic View on Isostatic Models. Pure and Applied Geophysics, DOI 10.1007/s00024-004-0489-x, 2009

Heinkelmann R., Böhm J., Schuh H., Tesmer V.: The influence of meteorological input data on the VLBI reference frames. In: Geodetic Reference Frames, IAG Symposia, Vol. 134, H. Drewes (Ed.), ISSN 0939-9585, 245-251, 2009

Heinkelmann R.: IVSTrop: Status and recommendations of the IVS rapid troposphere combination. In: Proceedings of the 19th Working Meeting on European VLBI for Geodesy and Astrometry, G. Bourda, P. Charlot, A. Collioud (Eds.), 179-181, 2009

Hense A., Sündermann J., Drewes H., Thomas M., Chen X., Dill R., Müller M., Seitz F., Stuck J., Walter C., Winkelnkemper T.: Physically consistent system model for study of the Earth s rotation, surface deformation and gravity field parameters - Scientific results of the DFG project. Dt. Geod. Komm., Reihe B, Nr. 317, München, 2009

Kelm R.: Rigorous variance component estimation in weekly intra-technique and inter-technique combination for global rerrestrial reference frames.. Springer, IAG Symposia, Vol. 134, 39-44, DOI:10.1007/978-3-642-00860-3_6, 2009

Ma C., Arias F., Bianco G., Boboltz D., Bolotin S., Charlot P., Engelhardt G., Fey A., Gaume R., Gontier A., Heinkelmann R., Jacobs C., Kurdubov S., Lambert S., Malkin Z., Nothnagel A., Petrov L., Skurikhina E., Sokolova J., Souchay J., Sovers O., Tesmer V., Titov O., Wang G., Zharov V.: The second realization of the International Celestial Reference Frame by Very Long Baseline Interferometry. IERS Technical Note, No. 35, A. Fey and D. Gordon (Eds.), Verlag des Bundesamts für Kartographie und Geodäsie, Frankfurt a.M., 2009

Martinez W., Sánchez L.: Realization of the SIRGAS Reference Frame in Colombia. In: Drewes H. (Ed.): Geodetic Reference Systems, Springer, IAG Symposia; Vol. 134: 185-190, 2009

Müller H., Angermann D.: The InternationalTerrestrial Reference Frame - Latest Developments. Proceedings of the 16th International Workshop on Laser Ranging, Poznan, Poland,Vol.1, 27-34, 2009

Richter B., Engels J., Grafarend E.: Transformation of amplitudes and frequencies of precession and nutation of the earths rotation vector to amplitudes and frequencies of diurnal polar motion. Journal of Geodesy, DOI:10.1007/s00190-009-0339-9, 2009

Richter , B. : Various Definitions of the Ecliptic. In: Drewes, H. (ed.): Geodetic Reference Frames. IAG Symposium Munich, 9-14 October 2006. IAG Symposia 134, Springer-Verlag, 2009

Rispens S., Bouman J.: Calibrating the GOCE accelerations with star sensor data and a global gravity field model. Journal of Geodesy, 83:737-749, DOI:10.1007/s00190-008-0290-1, 2009

Rummel R., Drewes H., Hornik H.: Deutsche Geodätische Kommission (DGK) / Deutsches Geodätisches Forschungsinstitut (DGFI). Bayer. Akademie der Wissenschaften, Jahrbuch 2008, 302-313, 2009

Sánchez L., L. , Brunini , C. : Achievements and Challenges of SIRGAS. In: Drewes H. (Ed.): Geodetic Reference Systems, Springer, IAG Symposia; Vol. 134: 161-166., 2009

Sánchez L., L. , Brunini , C. : SIRGAS: Basis for geosciences, geodata and navigation in Latin America.. Proceedings of the International Symposium on Global Navigation Satellite Systems, Space-based and Ground-based Augmentation Systems and Applications. Berlin, 11-14 November. Berlin Senate Department for Urban Development. P. 37 - 39., 2009

Sánchez L.: Strategy to Establish a Global Vertical Reference System. In: Drewes H. (Ed.): Geodetic Reference Systems, Springer, IAG Symposia; Vol. 134:273-278., 2009

Sánchez L., L. , Bosch , W. : The Role of the TIGA Project in the Unification of Classical Height Systems. In: Drewes H. (Ed.): Geodetic Reference Systems, Springer, IAG Symposia; Vol. 134:285-290, 2009

Sánchez L., L. , Seemüller , W. , Seitz , M. : SIRGAS Combination Centre at DGFI: Report for the SIRGAS 2009 General Meeting.. SIRGAS Newsletter 14, http://www.sirgas.org/fileadmin/docs/Boletines/Bol14/, 2009

Schuh H., Böhm J., Englich S., Heinkelmann R., Mendes-Cerveira P., Pany A., Plank L., Spicakova H., Teke K., Wresnik J.: Vienna IGG Special Analysis Center Annual Report 2008. In: IVS 2008 Annual Report, D. Behrend and K.D. Baver (Eds.), NASA/TP-2009-214183, 273-276, 2009

Schwegmann W., Gerstl M., Heinkelmann R.: BKG/DGFI Combination Center Annual Report 2008. In: IVS 2008 Annual Report, D. Behrend and K.D. Baver (Eds.), NASA/TP-2009-214183, 250-252, 2009

Seemüller W., Sánchez L.: SIRGAS Processing Centre at DGFI: Report for the SIRGAS 2009 General Meeting.. SIRGAS Newsletter 14, http://www.sirgas.org/fileadmin/docs/Boletines/Bol14/, 2009

Seitz M., Drewes H., Tesmer V., Heinkelmann R.: DGFI Analysis Center Annual Report 2008. In: IVS 2008 Annual Report, D. Behrend and K.D. Baver (Eds.), NASA/TP-2009-214183, 255-258, 2009

Seitz F., Drewes H.: Simulation of polar motion with a dynamic Earth system model over a period of 200 years (1860-2060). In: Proceedings Journées 2008 “Systèmes de Référence Spatio-Temporels, 123-126, Paris, 2009

Seitz M.: Kombination geodätischer Raumbeobachtungsverfahren zur Realisierung eines terrestrischen Referenzsystems. DGK Reihe C 630, 2009

Tanir E., Heinkelmann R., Schuh H., Kusche J., van Loon: Assessment of the results of VLBI intra-technique combination using regularization methods. In: Geodetic Reference Frames, IAG Symposia, Vol. 134, H. Drewes (Ed.), ISSN 0939-9585, 45-51, 2009

Torres J.A., Ihde J., Hornik H.: Report on the Symposium of the IAG Sub-commission 1.3a Europe (EUREF) held in London, 06-09 June 2007 / Reports of the EUREF Technical Working Group (TWG). International Association of Geodesy, Commission 1 Reference Frames, Sub-commission 1.3a Europe (EUREF), Publication No. 17. Mitteilungen des Bundesamtes für Kartographie und Geodäsie, Band 42, 2009