Erich Gamma, Richard Helm, Ralph E. Johnson, John M. Vlissides. Design Patterns: Abstraction and Reuse of Object-Oriented Design. In Oscar Nierstrasz, editor, ECOOP 93 - Object-Oriented Programming, 7th European Conference, Kaiserslautern, Germany, July 26-30, 1993, Proceedings. Volume 707 of Lecture Notes in Computer Science, pages 406-431, Springer, 1993. [doi]
Abstract is missing.