1. Free algebras in varieties of BL-algebras generated by a chain.

   • Manuela Busaniche

   Original Paper Pages: 259 - 277

2. s-extensions of special-valued lattice-ordered groups

   • Paul F. Conrad
   • Michael R. Darnel

   Original Paper Pages: 279 - 303

3. A class of archimedean lattice ordered algebras

   • Karim Boulabiar
   • Fatma Hadded

   Original Paper Pages: 305 - 323

4. Semigroup varieties with a small number of term operations

   • Igor Dolinka

   Original Paper Pages: 325 - 340

5. On lattice-ordered commutative semigroups

   • Laszlo Fuchs
   • Raquel Reis

   Original Paper Pages: 341 - 357

6. Localization of MV-algebras and lu-groups

   • Dumitru Buşneag
   • Dana Piciu

   Original Paper Pages: 359 - 380

7. Join congruence relations and closure relations

   • Kenneth P. Bogart
   • Laura H. Montague

   Mailbox Pages: 381 - 384

8. Constructing simple residuated lattices

   • W. J. Blok
   • J. G. Raftery

   Mailbox Pages: 385 - 389