Lex Hendriks Effective Logic Computation, Klaus Truemper. [Citation Graph (0, 0)][DBLP] Journal of Logic, Language and Information, 1999, v:8, n:4, pp:481-484 [Journal]
Lex Hendriks Intuitionistic Propositional Logic with Only Equivalence Has No Interpolation. [Citation Graph (0, 0)][DBLP] J. Log. Comput., 1998, v:8, n:4, pp:589-593 [Journal]