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by Holland, Samuel S.
by Helmberg, Gilbert
by Friedrichs, K. O.
by Hilbert, David; Halsted, George Bruce
by Ren, Haobo
by Gohberg, I. C.; Krein, M. G.
by Axler, Sheldon; Rosenthal, Peter; Sarason, Donald
by Kennedy, Rodney A.; Sadeghi, Parastoo
by Krall, Allan M.