@inbook{402984,
title = {8. Elementy prostorov\'e geometrie polohy},
booktitle = {Imagin\'arn\'\i\ elementy v geometrii},
series = {GDML\_Books},
publisher = {Jednota \v cesk\'ych matematik\r u a fysik\r u},
address = {Praha},
year = {1941},
pages = {48-49},
url = {http://dml.mathdoc.fr/item/402984}
}
(éd.). 8. Elementy prostorové geometrie polohy, dans Imaginární elementy v geometrii, GDML_Books, (1941), pp. 48-49. http://gdmltest.u-ga.fr/item/402984/