Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{10_21136_CPM_1964_108454, author = {Pfeffer, V\'aclav}, title = {Pozn\'amka k povrchu mno\v{z}in}, journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky}, pages = {148--154}, publisher = {mathdoc}, volume = {089}, number = {2}, year = {1964}, doi = {10.21136/CPM.1964.108454}, mrnumber = {0183849}, zbl = {0135.11404}, language = {cs}, url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1964.108454/} }
Pfeffer, Václav. Poznámka k povrchu množin. Časopis pro pěstování matematiky, Tome 089 (1964) no. 2, pp. 148-154. doi : 10.21136/CPM.1964.108454. http://geodesic.mathdoc.fr/articles/10.21136/CPM.1964.108454/
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