Kopff, August
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The mathematical theory of relativity:

Kopff, August ; Levy, Hyman, tr
http://hdl.handle.net/2027/mdp.39015017188817.  , 1923
 
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2

Individual corrections to FK3 and the declination system of.. 

Veröffentlichungen des Astronomischen Rechen-Instituts Heidelberg ; 14 = Bd. 2
Copies:  Zentrale:E02 h ast 043 2bp/331-14
 
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Fourth fundamental Catalogue (FK 4) 

Resulting from the revision of the Third fundamental Catalo...  Veröffentlichungen des Astronomischen Rechen-Instituts zu Heidelberg / Astronomisches Rechen-Institut, Heidelberg ; 10
Copies:  Zentrale:E02 h ast 043 2bp/331-10
 
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