Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MOMA_1968__72_177436, author = {Klaus Schmitt}, title = {Boundary {Value} {Problems} for {Nonlinear} {Second} {Order} {Differential} {Equations.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {347--354}, publisher = {mathdoc}, volume = {72}, year = {1968}, zbl = {0162.11502}, url = {http://geodesic.mathdoc.fr/item/MOMA_1968__72_177436/} }
Klaus Schmitt. Boundary Value Problems for Nonlinear Second Order Differential Equations.. Monatshefte für Mathematik, Tome 72 (1968), pp. 347-354. http://geodesic.mathdoc.fr/item/MOMA_1968__72_177436/