@article{MASLO_1956_6_2_a3,
     author = {Vy\v{c}ichlo, F.},
     title = {O dvojic{\'\i}ch ploch se spole\v{c}n\'ymi diferenci\'aln{\'\i}mi invarianty},
     journal = {Mathematica slovaca},
     pages = {85--97},
     year = {1956},
     volume = {6},
     number = {2},
     mrnumber = {0080947},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1956_6_2_a3/}
}