@article{104968, author = {Otomar H\'ajek}, title = {Betti numbers of regions of attraction}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {005}, year = {1964}, pages = {129-132}, zbl = {0134.42301}, mrnumber = {0177403}, language = {en}, url = {http://dml.mathdoc.fr/item/104968} }
Hájek, Otomar. Betti numbers of regions of attraction. Commentationes Mathematicae Universitatis Carolinae, Tome 005 (1964) pp. 129-132. http://gdmltest.u-ga.fr/item/104968/
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