The Citing articles tool gives a list of articles citing the current article. The citing articles come from EDP Sciences database, as well as other publishers participating in CrossRef Cited-by Linking Program. You can set up your personal account to receive an email alert each time this article is cited by a new article (see the menu on the right-hand side of the abstract page).
Marie-Pierre Béal and Olivier Carton Lecture Notes in Computer Science, Automata, Languages and Programming 1853 561 (2000) https://doi.org/10.1007/3-540-45022-X_47
M. Latteux and E. Timmerman Lecture Notes in Computer Science, Mathematical Foundations of Computer Science 1990 452 407 (1990) https://doi.org/10.1007/BFb0029636