@article{1102707244, author = {Beem, John K. and Parker, Phillip E.}, title = {Whitney stability of solvability.}, journal = {Pacific J. Math.}, volume = {120}, number = {2}, year = {1985}, pages = { 11-23}, language = {en}, url = {http://dml.mathdoc.fr/item/1102707244} }
Beem, John K.; Parker, Phillip E. Whitney stability of solvability.. Pacific J. Math., Tome 120 (1985) no. 2, pp. 11-23. http://gdmltest.u-ga.fr/item/1102707244/