APA (7th ed.) Citation

Gander, W., Golub, G. H., & Matt, U. v. (1988). A constrained eigenvalue problem.

Chicago Style (17th ed.) Citation

Gander, Walter, Gene H. Golub, and Urs von Matt. A Constrained Eigenvalue Problem. Zürich, 1988.

MLA (9th ed.) Citation

Gander, Walter, et al. A Constrained Eigenvalue Problem. 1988.