1. B. Adsul AND M. Sohoni: First-Order Logic over Traces, Technical Report, Dept. of Computer Science & Engineering, I. I. T. Mumbai, India (2002). Also see http://www.cse.iitb.ac.in/~abharat/logics.html
2. Lect Notes Comput Sci;V. Diekert,2000
3. V. Diekert AND P. Gastin: Local Temporal Logic is Expressively Complete for Cograph Dependence Alphabets, Proc. LPAR’ 01, LNAI 2250 (2000) 55–69.
4. V. Diekert AND A. Muscholl: Deterministic Asynchronous Automata for Infinite Traces, Acta Inf., 31 (1993) 379–397.
5. V. Diekert AND G. Rozenberg (Eds.): The Book of Traces, World Scientific, Singapore (1995).