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Bourguignon, Jean-Pierre Variational calculus Cham, Switzerland : Springer, 2022. xix, 274 p. -- (Springer monographs in mathematics) QA316 B68 |
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Bourguignon, Jean-Pierre Variational calculus Cham, Switzerland : Springer, 2022. xix, 274 p. -- (Springer monographs in mathematics) QA316 B68 |