@article{MASLO_1953_3_1-2_a9, author = {Vy\v{c}ichlo, F.}, title = {O n\v{e}kter\'ych projektivn{\'\i}ch invariantech plochy}, journal = {Mathematica slovaca}, pages = {41--47}, year = {1953}, volume = {3}, number = {1-2}, mrnumber = {0065987}, language = {cs}, url = {http://geodesic.mathdoc.fr/item/MASLO_1953_3_1-2_a9/} }