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@article{10_21136_CPM_1951_117013, author = {Pt\'ak, Vlastimil}, title = {D\r{u}kaz jedn\'e v\v{e}ty {Wardovy}}, journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky}, pages = {217--224}, publisher = {mathdoc}, volume = {076}, number = {3}, year = {1951}, doi = {10.21136/CPM.1951.117013}, mrnumber = {0051290}, zbl = {0083.28603}, language = {cs}, url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1951.117013/} }
Pták, Vlastimil. Důkaz jedné věty Wardovy. Časopis pro pěstování matematiky, Tome 076 (1951) no. 3, pp. 217-224. doi : 10.21136/CPM.1951.117013. http://geodesic.mathdoc.fr/articles/10.21136/CPM.1951.117013/
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