By Zeytounian, R.Kh.
By P. G. Drazin (University of Bristol)
By Daniel Fleisch (Wittenberg University, Ohio)
By Spiegel, Murray R., Murray Spiegel
By Boyce, William E., DiPrima, Richard C.
By PGDrazin
By Nagle
By Fleisch, Daniel
By Mao, X.
By Bronson, Richard, Costa, Gabriel
By Drazin, PGDrazin
By Lapidus, Leon, Pinder, George F.
By Williams, David
By Simmons, George F
By Shapira, Yair
By Friedman, Avner
By Fusai, Gianluca, Roncoroni, Andrea
By Krantz, Steven
By Courant, Richard
By Evans, G., Blackledge, J., Yardley, P.
By Birkhoff, Garrett, ROTA, Gian-Carlo
By Shivamoggi, Bhimsen K.
By Morel, Christophe
By Soare, Mircea, Teodorescu, Petre P., Toma, Ileana
By Hochstadt, Harry
By Clark, Ronald W.
By Cochrane, Richard
By Orlandi, Paolo