TY - DATA AU - S. Fucik AU - J. Necas AU - J. Soucek AU - V. Soucek TI - Spectral Analysis of Nonlinear Operators T2 - Lecture Notes in Mathematics SN - 9783540378044 PY - 1973/// CY - Heidelberg PB - Springer Berlin KW - Mathematics and Statistics UR - https://doi.org/10.1007/BFb0059360 ER -