Schmidt, Renate A. Programming Logics, MPI for Informatics, Max Planck Society;
MPI-I-98-2-003.pdf (Any fulltext), 353KB
Schmidt, R. A.(1998). E-unification for subsystems of S4 (MPI-I-1998-2-003). Saarbrücken: Max-Planck-Institut für Informatik.