Congruences and Trajectories in Planar Semimodular Lattices Journal title: Discussiones Mathematicae - General Algebra and Applications Authors: G. Grätzer Subject(s):
Weak-hyperlattices derived from fuzzy congruences Journal title: Discussiones Mathematicae - General Algebra and Applications Authors: Blériot Blaise Njionou Koguep, Celestin Lele Subject(s):
