On some Menger algebras of multiplace transformations of ordered sets V. S. Trokhimenko OriginalPaper Pages: 375 - 386
Skew Boolean algebras and discriminator varieties R. J. BignallJ. E. Leech OriginalPaper Pages: 387 - 398
Decision problems for distributive lattice-ordered semigroups A. Urquhart OriginalPaper Pages: 399 - 418
Uniqueness of the group operation on the lattice of order-automorphisms of the real line M. R. DarnelM. GiraudetS. H. McCleary OriginalPaper Pages: 419 - 427
Near unanimity: an obstacle to general duality theory B. A. DaveyL. HeindorfR. McKenzie OriginalPaper Pages: 428 - 439