1

A proof of a relation between the numbers of singularities of a closed polygon

Year:
1979
Language:
english
File:
PDF, 181 KB
english, 1979
2

Sur les variétés

Year:
1936
File:
PDF, 1.08 MB
1936
3

Über algebraische Flächen vierter Ordnung im projektivenR4

Year:
1936
Language:
german
File:
PDF, 1.16 MB
german, 1936
4

Nichteuklidische Fußpunktkurven

Year:
1949
Language:
german
File:
PDF, 223 KB
german, 1949
5

On strictly convex curves and linear monotonicity

Year:
1961
Language:
english
File:
PDF, 345 KB
english, 1961
6

Note on a theorem of G. Bol

Year:
1952
Language:
english
File:
PDF, 144 KB
english, 1952
7

Eine Darstellung von J. Hjelmslevs projektiver Infinitesimalgeometrie

Year:
1956
Language:
german
File:
PDF, 2.29 MB
german, 1956
8

Sur les surfaces du 4èmeordre

Year:
1938
Language:
french
File:
PDF, 264 KB
french, 1938
9

On a class of locally convex closed curves

Year:
1961
Language:
english
File:
PDF, 458 KB
english, 1961