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@article{AM2_1969__2_182341, author = {L. J. MORDELL}, title = {The {Minimum} {Value} of a {Definite} {Integral.} {II}}, journal = {Aequationes mathematicae}, pages = {327--331}, publisher = {mathdoc}, volume = {2}, year = {1969}, zbl = {0176.01101}, url = {http://geodesic.mathdoc.fr/item/AM2_1969__2_182341/} }
L. J. MORDELL. The Minimum Value of a Definite Integral. II. Aequationes mathematicae, Tome 2 (1969), pp. 327-331. http://geodesic.mathdoc.fr/item/AM2_1969__2_182341/