A new method for obtaining eigenvalues of variational inequalities. Branches of eigenvalues of the equation with the penalty in a special case Milan Kučera (1979) Časopis pro pěstování matematiky Similarity:
On a class of nonlinear eigenvalue problems Karl P. Hadeler (1974) Acta Universitatis Carolinae. Mathematica et Physica Similarity:
A new method for obtaining eigenvalues of variational inequalities based on bifurcation theory Milan Kučera (1979) Časopis pro pěstování matematiky Similarity: