@article{104966, author = {Otomar H\'ajek}, title = {Critical points of abstract dynamical systems}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {005}, year = {1964}, pages = {121-124}, zbl = {0134.42204}, mrnumber = {0177402}, language = {en}, url = {http://dml.mathdoc.fr/item/104966} }
Hájek, Otomar. Critical points of abstract dynamical systems. Commentationes Mathematicae Universitatis Carolinae, Tome 005 (1964) pp. 121-124. http://gdmltest.u-ga.fr/item/104966/
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