@article{1183530320,
author = {Lin, Sue-Chin},
title = {On smoothness of gentle perturbations},
journal = {Bull. Amer. Math. Soc.},
volume = {75},
number = {5},
year = {1969},
pages = { 445-449},
language = {en},
url = {http://dml.mathdoc.fr/item/1183530320}
}
Lin, Sue-Chin. On smoothness of gentle perturbations. Bull. Amer. Math. Soc., Tome 75 (1969) no. 5, pp. 445-449. http://gdmltest.u-ga.fr/item/1183530320/