@book{402518, title = {Z\'aklady analytick\'e geometrie. I}, series = {GDML\_Books}, publisher = {P\v r\'\i rodov\v edeck\'e vydavatelstv\'\i }, year = {1951}, language = {cs}, url = {http://dml.mathdoc.fr/item/402518} }
Čech, Eduard. Základy analytické geometrie. I. GDML_Books (1951), http://gdmltest.u-ga.fr/item/402518/