Media type: E-Article Title: Twenty Years of Patterns' Impact Contributor: Hohpe, Gregor; Wirfs-Brock, Rebecca; Yoder, Joseph W.; Zimmermann, Olaf Published: Institute of Electrical and Electronics Engineers (IEEE), 2013 Published in: IEEE Software, 30 (2013) 6, Seite 88-88 Language: Not determined DOI: 10.1109/ms.2013.135 ISSN: 0740-7459 Keywords: Software Origination: Footnote: