@book{402733, title = {\'Uvod do neeukleidovsk\'e geometrie}, series = {GDML\_Books}, publisher = {Jednota \v Ceskoslovensk\'ych matematik\r u a fysik\r u}, address = {Praha}, year = {1926}, language = {cs}, url = {http://dml.mathdoc.fr/item/402733} }
Hlavatý, Václav. Úvod do neeukleidovské geometrie. GDML_Books (1926), http://gdmltest.u-ga.fr/item/402733/