@article{AM2_1969__2_182324,
     author = {R. BELLMAN},
     title = {Two-Point {Boundary-Value} {Problems} and {Iteration}},
     journal = {Aequationes mathematicae},
     pages = {167--170},
     publisher = {mathdoc},
     volume = {2},
     year = {1969},
     zbl = {0174.13601},
     url = {http://geodesic.mathdoc.fr/item/AM2_1969__2_182324/}
}