SpringerLink (Online service), Gohberg, I., & Apostol, C. (1988). Topics in operator theory: Constantin Apostol memorial issue. Birkhäuser Verlag.
Chicago Style (17th ed.) CitationSpringerLink (Online service), I. Gohberg, and C. Apostol. Topics in Operator Theory: Constantin Apostol Memorial Issue. Basel ; Boston: Birkhäuser Verlag, 1988.
MLA (9th ed.) CitationSpringerLink (Online service), et al. Topics in Operator Theory: Constantin Apostol Memorial Issue. Birkhäuser Verlag, 1988.
Warning: These citations may not always be 100% accurate.