Constructing greedy linear extensions by interchanging chains Ivan RivalNejib Zaguia OriginalPaper Pages: 107 - 121
NP-Completeness results concerning greedy and super greedy linear extensions Henry A. Kierstead OriginalPaper Pages: 123 - 134
Maximizing a correlational ratio for linear extensions of posets P. C. Fishburn OriginalPaper Pages: 159 - 167
Finite axiomatizations for existentially closed posets and semilattices Michael H. AlbertStanley N. Burris OriginalPaper Pages: 169 - 178
Divisibility in O-primitive lattice-ordered permutation groups Spencer Hurd OriginalPaper Pages: 195 - 205