Παραπομπή APA

Forster, K. (2006). Operator theory in Krein spaces and nonlinear Eigenvalue problems. Birkhauser Verlag.

Παραπομπή Chicago Style

Forster, Karl-Heinz. Operator Theory in Krein Spaces and Nonlinear Eigenvalue Problems. Basel: Birkhauser Verlag, 2006.

Παραπομπή MLA

Forster, Karl-Heinz. Operator Theory in Krein Spaces and Nonlinear Eigenvalue Problems. Birkhauser Verlag, 2006.