@book{402828, title = {Cyklografie}, series = {GDML\_Books}, publisher = {Jednota \v ceskoslovensk\'ych matematik\r u a fysik\r u v Praze}, address = {Praha}, year = {1949}, language = {cs}, url = {http://dml.mathdoc.fr/item/402828} }
Seifert, Ladislav. Cyklografie. GDML_Books (1949), http://gdmltest.u-ga.fr/item/402828/