Geodesic
Contractive mappings and periodically perturbed conservative systems
Archivum mathematicum, Tome 12 (1976) no. 2, pp. 67-73

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Classification : 34C25, 47J05 
Mawhin, Jean. Contractive mappings and periodically perturbed conservative systems. Archivum mathematicum, Tome 12 (1976) no. 2, pp. 67-73. http://geodesic.mathdoc.fr/item/ARM_1976_12_2_a1/
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     zbl = {0353.47034},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1976_12_2_a1/}
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