1
Published: 1983
Superior document: Mitteilungen der Sternwarte Babelsberg : Teil B: Physik N.F. 25
2
Published: 1982
Superior document: On Treder-Type Tetrad Theories of Gravitation 2
3
4
Published: 1982
Superior document: On Treder-Type Tetrad Theories of Gravitation 1
5
Published: 1980
Superior document: Mitteilungen der Sternwarte Babelsberg : Teil B: Physik N.F. 7