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The Variational Theory of Geodesics
by Postnikov, M. M.; Gelbaum, Bernard R.
ISBN: 9780486838281
Copyright:
Paperback
Analytic Functions
by Evgrafov, M. A.; Scripta Technica, Inc.; Gelbaum, Bernard R.
ISBN: 9780486837604
Counterexamples in Analysis
by Gelbaum, Bernard R.; Olmsted, John M. H.
ISBN: 9780486428758