SPLITTING PROPERTIES OF TOTAL ENUMERATION DEGREES
SYMMETRY OF SECTIONS IN FIELDS OF FORMAL POWER SERIES AND A NON-STANDARD REAL LINE
TEST RANK FOR SOME FREE POLYNILPOTENT GROUPS
GROUPS CONTAINING A SELF-CENTRALIZING SUBGROUP OF ORDER 3
IMPLICIT DEFINABILITY AND POSITIVE LOGICS
MARKOV PROPERTIES OF BURNSIDE VARIETIES OF SEMIGROUPS
ITERATIVE ALGEBRAS WITHOUT PROJECTIONS
SESSIONS OF THE SEMINAR “ALGEBRA i LOGIKA”