| Title:
             | 
Surfaces réglées qui sont enveloppes de sphères (French) | 
| Title:
             | 
Ruled surfaces which are envelopes of spheres (English) | 
| Author:
             | 
Havlíček, Karel | 
| Language:
             | 
French | 
| Journal:
             | 
Czechoslovak Mathematical Journal | 
| ISSN:
             | 
0011-4642 (print) | 
| ISSN:
             | 
1572-9141 (online) | 
| Volume:
             | 
1 | 
| Issue:
             | 
3 | 
| Year:
             | 
1951 | 
| Pages:
             | 
(187)-197 | 
| . | 
| Category:
             | 
math | 
| . | 
| MSC:
             | 
53.0X | 
| idZBL:
             | 
Zbl 0048.38903 | 
| idMR:
             | 
MR0050938 | 
| DOI:
             | 
10.21136/CMJ.1951.100027 | 
| . | 
| Date available:
             | 
2008-06-09T12:38:12Z | 
| Last updated:
             | 
2020-07-28 | 
| Stable URL:
             | 
http://hdl.handle.net/10338.dmlcz/100027 | 
| . | 
| Reference:
             | 
[1] K. Havlíček: Sur les surfaces enveloppes de sphères.Časopis pro pěstování matematiky a fysiky 74 (1949), 21-40. MR 0033137 | 
| Reference:
             | 
[2] V. Hlavatý: Differentialgeometrie der Kurven und Flächen und Tensorrechnung.(P. Noordhof N. V., Groningen-Batavia, 1939.) | 
| Reference:
             | 
[3] R. Lilienthal: Vorlesungen über Differentialgeometrie, II.(B. G. Teubner, Leipzig-Berlin, 1913.) | 
| . |