@book{403823, title = {Co asi nev\'\i te o vzd\'alenosti}, series = {GDML\_Books}, publisher = {Mlad\'a fronta}, address = {Praha}, year = {1974}, language = {cs}, url = {http://dml.mathdoc.fr/item/403823} }
Kufner, Alois. Co asi nevíte o vzdálenosti. GDML_Books (1974), http://gdmltest.u-ga.fr/item/403823/