n-Permutable varieties satisfy non trivial congruence identities P. Lipparini OriginalPaper Pages: 159 - 168
On the subalgebra lattice of Peano algebras with finitary and infinitary operations K. -H. Diener OriginalPaper Pages: 169 - 185
The semigroup of not bijective finite selfmaps of an infinite set I. Fleischer OriginalPaper Pages: 186 - 190
An identity for subgroup lattices of Abelian groups P. P. PálfyCs. Szabó OriginalPaper Pages: 191 - 195
If a polynomial identity guarantees that every partial order on a ring can be extended, then this identity is true only for a zero-ring V. Kreinovich OriginalPaper Pages: 237 - 242
Complementing lattice-ordered groups: The finite-valued case J. Martinez OriginalPaper Pages: 243 - 253