Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Klaus Gewald, Dieter Hertel, Jan Witt. COLUMBUS - Strukturierte Programmierung in der Praxis. it - Information Technology, 19(1):30-34, 1977.