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.
Karl Johan Åström, C. C. Hang, P. Persson, W. K. Ho. Towards intelligent PID control. Automatica, 28(1):1-9, 1992. [doi]