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@article{AM2_1977__16_136694, author = {L.L. Keener and W.H. Ling}, title = {Approximation under an arc length constraint. {(Short} {Communiaction).}}, journal = {Aequationes mathematicae}, pages = {194--194}, publisher = {mathdoc}, volume = {16}, year = {1977}, zbl = {0379.41017}, url = {http://geodesic.mathdoc.fr/item/AM2_1977__16_136694/} }
L.L. Keener; W.H. Ling. Approximation under an arc length constraint. (Short Communiaction).. Aequationes mathematicae, Tome 16 (1977), p. 194. http://geodesic.mathdoc.fr/item/AM2_1977__16_136694/