Blanchard,Philippe, & Erwin Bruning. (1992). Variational Methods in Mathematical Physics: A Unified Approach. Springer.
Chicago Style aipamenaBlanchard,Philippe, and Erwin Bruning. Variational Methods in Mathematical Physics: A Unified Approach. USA: Springer, 1992.
MLA aipamenaBlanchard,Philippe, and Erwin Bruning. Variational Methods in Mathematical Physics: A Unified Approach. Springer, 1992.
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