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.
Luc Boasson, Maurice Nivat. Adherences of Languages. J. Comput. Syst. Sci., 20(3):285-309, 1980.
Abstract is missing.