@article{105485, author = {Petr Simon}, title = {A note on cardinal invariants of square}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {014}, year = {1973}, pages = {205-213}, zbl = {0258.54003}, mrnumber = {0339044}, language = {en}, url = {http://dml.mathdoc.fr/item/105485} }
Simon, Petr. A note on cardinal invariants of square. Commentationes Mathematicae Universitatis Carolinae, Tome 014 (1973) pp. 205-213. http://gdmltest.u-ga.fr/item/105485/
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