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1 - The calculus of variations
Akhiezer, Naoum Ilitch (1901-1980)   /   Frink, Aline H. (Trad.)

Cote : [67.4 AKH 62]

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2 - The calculus of variations in the large
Morse, Marston (1892-1977)

Cote : [67.4 MOR 1934]