1. Algebraic coalitions

   • A. Ensor

   OriginalPaper 01 December 1997 Pages: 1 - 14

2. Subdirectly dominated semigroup varieties

   • M. Demlová
   • V. Koubek

   OriginalPaper 01 December 1997 Pages: 15 - 35

3. Binary operations suffice to test collapsing of monoidal intervals

   • J.-U. Grabowski

   OriginalPaper 01 December 1997 Pages: 92 - 95

4. Derived varieties of semigroups and groupoids

   • D. Schweigert
   • S. L Wismath

   OriginalPaper 01 December 1997 Pages: 36 - 55

5. (Finitely) subdirectly irreducibles and Birkhoff-like sheaf representation for certain varieties of lattice ordered structures

   • H. Gramaglia
   • D.J Vaggione

   OriginalPaper 01 December 1997 Pages: 56 - 91