@article{etna_vol7_pp75-89, author = {Gerard L. G. Sleijpen and Henk A. van der Vorst and Ellen Meijerink}, title = {Efficient expansion of subspaces in the Jacobi-Davidson method for standard and generalized eigenproblems}, journal = {Electron. Trans. Numer. Anal.}, volume = {7}, year = {1998}, pages = {75--89}, }