@article{GDZPPN002549069, title = {Two-Point Boundary-Value Problems and Interation. (Short Communication).}, journal = {Aequationes mathematicae}, volume = {1}, year = {1968}, pages = {207-207}, url = {http://dml.mathdoc.fr/item/GDZPPN002549069} }
Bellman, Richard. Two-Point Boundary-Value Problems and Interation. (Short Communication).. Aequationes mathematicae, Tome 1 (1968) p. 207. http://gdmltest.u-ga.fr/item/GDZPPN002549069/