Improvements to Earley's Context-Free Parser. - M. Bouckaert; Alain Pirotte 001; M. Snelling (GI Jahrestagung, 1973)

Efficient parsing algorithms for general context-free parsers. - M. Bouckaert; Alain Pirotte 001; M. Snelling (Inf. Sci., 1975)

DBMS and COMPASS: The COMPTEL Processing and Analysis Software System. - G. Simpson; R. Diehl; T. Casilli; Volker Schönfelder; Gert Gislher Lichti; Helmut Steinle; B. Swanenburg; H. Aarts; A. Deerenberg; W. Hermsen; K. Bennett; C. Winkler; et al. (SSDBM, 1986)