References
- Rebhan , H , Aguirre , M and Johannessen , J . 2000 . The gravity field and steady-state ocean circulation explorer mission - GOCE . ESA Earth Observation Quarterly , 66 : 6 – 11 .
- Rummel , R , Reigber , C and Ilk , K . 1978 . The use of satellite-to-satellite tracking for gravity parameter recovery . ESA Workshop on Space oceanography, Navigation and Geodynamics (SONG), ESA-SP-137 , : 151 – 161 .
- Freeden , W . 1999 . “ Multiscale Modelling of Spaceborne Geodata ” . Leipzig, Stuttgart : Teubner Verlag .
- Schwintzer , P . 1997 . Earth gravity field recovery from satellite orbit perturbations . Geowissenschaften , 15 : 85 – 89 .
- Gilbarg , D and Trudinger , S . 1997 . Elliptic Partial Differential Equations of Second Order, Grundlehren der mathematischen Wissenschaften , Berlin, , Heidelberg : Springer .
- Luo , Y and Trudinger , N . 1991 . Linear second-order elliptic equations with venttsel boundary conditions . Proceedings of the Royal Society of Edinburgh , 118 : 193 – 207 .
- Egorov , J and Kondratiev , V . 1969 . The oblique derivative problem . Mathematische USSR Sbornik , 7 : 139 – 169 .
- Freeden , W , Gervens , T and Schreiner , M . 1998 . Constructive Approximation on the Sphere (With Applications to Geomathematics), Numerical Mathematics and Scientific Computation , Oxford, New York : Oxford University Press .
- Bauer , F . 2004 . “ An alternate approach to the oblique derivative problem in potential theory ” . In PhD thesis , Department of Mathematics, Geomathematics Group : Universtiy of Kaiserslautern .
- Levandovskyy , V . 2003 . Personal communications
- Greuel , G-M , Pfister , G and Schönemann , H . 2001 . Singular 2.0. A Computer Algebra System for Polynomial Computations. Centre for Computer Algebra , University of Kaiserslautern . Available online at: http://www.singular.uni-kl.de
- Seiler , W . 1994 . “ Analysis and application of the formal theory of partial differential equations ” . In PhD thesis , Lancaster University and University of Karlsruhe .
- Greuel , G-M and Pfister , G . 2002 . A Singular Introduction to Commutative Algebra. , Heidelberg : Springer .
- Bauer , F . Easy differentiation and integration of homogeneous harmonic polynomials . Schriften zur Funktionalanalysis und Geomathematik, University of Kaiserslautern , (Preprint)
- Bauer , F and Pereverzev , S . 2005 . Regularization without preliminary knowledge of smoothness and error behavior . European Journal of Applied Mathematics , 16 ( 3 ) : 303 – 317 .
- EuropeanSpaceAgency . 1999 . Gravity field and steady-state ocean circulation mission. Report for mission selection – the four candidate earth explorer core missions . ESA SP-1233 ,