Leipholz, H. H. E. (1977). Direct variational methods and eigenvalue problems in engineering. Noordhoff International Publishing.
Chicago Edition CitationLeipholz, H. H. E. Direct Variational Methods and Eigenvalue Problems in Engineering. Leyden: Noordhoff International Publishing, 1977.
Deismireacht MLALeipholz, H. H. E. Direct Variational Methods and Eigenvalue Problems in Engineering. Noordhoff International Publishing, 1977.
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