Closure properties of certain families of formal languages with respect to a generalization of cyclic closure Andreas Brandstadt — 1981 RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
Space classes, intersection of languages and bounded erasing homomorphisms Andreas Brandstädt — 1983 RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
Recognizing the P 4 -structure of claw-free graphs and a larger graph class. Babel, Luitpold; Brandstädt, Andreas; Le, Van Bang — 2002 Discrete Mathematics and Theoretical Computer Science. DMTCS [electronic only]