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	1.	Variational methods in mathematical physics: a unified approach/ Philippe Blanchard, Erwin Brüning. by Blanchard, Philippe Bruning, Erwin Series: Texts and monographs in physics Language: English Original language: German Publication details: Berlin ; New York: Springer-Verlag, c1992 Availability: Items available for loan: Castorina (1)Call number: 530.15 B639v 1992 IMPA. Found in Open Library: Place hold Add to cart (remove)
	2.	No cover image available No cover image available Variational principles/ [by] B.L. Moiseiwitsch. by Moiseiwitsch, B. L. (Benjamin Lawrence) Series: Interscience monographs and texts in physics and astronomy ; v. 20. Publication details: London: New York: Interscience Publishers, [1966] Availability: Items available for loan: Castorina (1)Call number: 530.15 M714v 1966 IMPA. Found in Open Library: Place hold Add to cart (remove)

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