@article{GDZPPN002098121, title = {Monodromy Groups of Critical Point of Functions.}, journal = {Inventiones mathematicae}, volume = {69}, year = {1982}, pages = {123-132}, zbl = {0468.57024}, url = {http://dml.mathdoc.fr/item/GDZPPN002098121} }
Chmutov, S.V. Monodromy Groups of Critical Point of Functions.. Inventiones mathematicae, Tome 69 (1982) pp. 123-132. http://gdmltest.u-ga.fr/item/GDZPPN002098121/