The number of order-preserving maps of fences and crowns J. D. CurrieT. I. Visentin OriginalPaper Pages: 133 - 142
The geometry of the chamber system of a semimodular lattice Herbert Abels OriginalPaper Pages: 143 - 158
Transitive closure for restricted classes of partial orders Tze-Heng MaJeremy Spinrad OriginalPaper Pages: 175 - 183
n-median semilattices Hans-Jürgen BandeltMelvin F. JanowitzGerasimos C. Meletiou OriginalPaper Pages: 185 - 195
Bigeneration in complete lattices and principal separation in ordered sets Marcel Erné OriginalPaper Pages: 197 - 221