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@article{M2AN_1967__1_4_63_0, author = {Picard, Claude}, title = {Sur un probl\`eme de pes\'ees}, journal = {ESAIM: Mathematical Modelling and Numerical Analysis }, pages = {63--72}, publisher = {Dunod}, address = {Paris}, volume = {1}, number = {4}, year = {1967}, language = {fr}, url = {http://geodesic.mathdoc.fr/item/M2AN_1967__1_4_63_0/} }
Picard, Claude. Sur un problème de pesées. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 1 (1967) no. 4, pp. 63-72. http://geodesic.mathdoc.fr/item/M2AN_1967__1_4_63_0/