@book{402947,
title = {O rovnic\'\i ch},
series = {GDML\_Books},
publisher = {Jednota \v cesk\'ych matematik\r u a fysik\r u v Praze},
address = {Praha},
year = {1940},
language = {cs},
url = {http://dml.mathdoc.fr/item/402947}
}
Schwarz, Štefan. O rovnicích. GDML_Books (1940), http://gdmltest.u-ga.fr/item/402947/