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@book{book_91556506,
    title = {Calculus of Variations},
    author = {I. M. Gelfand and S. V. Fomin},
    publisher = {Dover Publications},
    isbn = {9780486414485; 0486414485; 0131122924; 9780131122925},
    year = {2000},
    url = {libgen.li/file.php?md5=e5f2c8a1a290cda9309016d950e1d319},
    date-added = {2025-2-24 9:11:58 +0100}
}

@book{book_91556506, title = {Calculus of Variations}, author = {I. M. Gelfand and S. V. Fomin}, publisher = {Dover Publications}, isbn = {9780486414485; 0486414485; 0131122924; 9780131122925}, year = {2000}, url = {libgen.li/file.php?md5=e5f2c8a1a290cda9309016d950e1d319}, date-added = {2025-2-24 9:11:58 +0100} }