Lanczos, C. (1986). The variational principles of mechanics (4th ed.). New York: Dover Publications.
Παραπομπή Chicago StyleLanczos, Cornelius. The Variational Principles of Mechanics. 4th ed. New York: Dover Publications, 1986.
Παραπομπή MLALanczos, Cornelius. The Variational Principles of Mechanics. 4th ed. New York: Dover Publications, 1986.
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