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1.
Complementary variational principles. Second edition. by Arthurs, A.M. Publication: Oxford Clarendon Press 1980 Date: 1980 Availability: Items available: School of Theoretical Physics Library [515.9 ART] (1),
2.
Complementary variational principles. by Arthurs, A.M. Publication: Oxford Clarendon Press 1970 Date: 1970 Availability: Items available: School of Theoretical Physics Library [515.9 ART] (1),