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2. Applicable Mathematics Series;Attouch, H.,1984
3. On the topological degree for mappings of monotone type;Berkovits, Juha;Nonlinear Anal.,1986
4. Fixed point theory and nonlinear problems;Browder, Felix E.;Bull. Amer. Math. Soc. (N.S.),1983
5. Degree theory for nonlinear mappings;Browder, Felix E.,1986