@book{403527, title = {Geometrick\'a m\'\i sta bod\r u v prostoru}, series = {GDML\_Books}, publisher = {Mlad\'a fronta}, address = {Praha}, year = {1965}, language = {cs}, url = {http://dml.mathdoc.fr/item/403527} }
Holubář, Josef. Geometrická místa bodů v prostoru. GDML_Books (1965), http://gdmltest.u-ga.fr/item/403527/