Oser, L. C. t. b. H. Functional analysis and numerical mathematics. Academic Press.
Čikaški stil citiranja (17. izdanje)Oser, Lothar Collatz translated by Hansjong. Functional Analysis and Numerical Mathematics. Academic Press.
MLA način citiranja (8. izdanje)Oser, Lothar Collatz translated by Hansjong. Functional Analysis and Numerical Mathematics. Academic Press.
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