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1 - Norm inequalities for derivatives and differences
Kwong, Man Kam (1947-....)   /   Zettl, Anton

Cote : [44 KWO 92]

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2 - The deficiency index problem for powers of ordinary differential expressions
Kauffman, Robert Mckenzie (1941-....)   /   Read, Thomas Thornton (1943-....)   /   Zettl, Anton

Cote : [LNM 621]