APA

Schaefer P. W., Conference on Maximum Principles and Eigenvalue Problems in Partial Differential Equations, . (1988). Maximum principles and eigenvalue problems in partial differential equations. Harlow: Longman Scientific & Technical.

Chicago

Schaefer Philip W, Conference on Maximum Principles and Eigenvalue Problems in Partial Differential Equations, . 1988. Maximum principles and eigenvalue problems in partial differential equations. Harlow: Longman Scientific & Technical.

Harvard

Schaefer P. W., Conference on Maximum Principles and Eigenvalue Problems in Partial Differential Equations, . (1988). Maximum principles and eigenvalue problems in partial differential equations. Harlow: Longman Scientific & Technical.

MLA

Schaefer Philip W, Conference on Maximum Principles and Eigenvalue Problems in Partial Differential Equations, . Maximum principles and eigenvalue problems in partial differential equations. Harlow: Longman Scientific & Technical. 1988.