@article{1102945120, author = {Villone, Arnold}, title = {Self-adjoint extensions of symmetric differential operators.}, journal = {Pacific J. Math.}, volume = {49}, number = {2}, year = {1973}, pages = { 569-577}, language = {en}, url = {http://dml.mathdoc.fr/item/1102945120} }
Villone, Arnold. Self-adjoint extensions of symmetric differential operators.. Pacific J. Math., Tome 49 (1973) no. 2, pp. 569-577. http://gdmltest.u-ga.fr/item/1102945120/