The structure of regular semigroups, I: A representation.
The structure of regular semigroups, II: Cross connections.
The structure of regular semigroups, III: The reduced case.
The structure of regular semigroups, IV: The general case.
The structure of the minimum group kernel of a regular semigroup
The structure of type A semigroups.
The Structure of ...-unipotent semigroups.
The system of idempotents of a regular semigroup
The tensor product of a semigroup with a union of groups.
The tensor product of right groups
The tensor product of semi-lattices.
The translational degree of a semigroup.
The translational hull of a normal cryptogroup
The translational hull of a subsemigroup of a semilattice of groups.
The translational hull of an adequate semigroup.
The universal group of homogeneous quotients.
The...-CATEGORY OF A SEMIGROUP.
Theorie des congruences premieres.
Théorie des Demi-Groupes Hyperperiodiques ? Applications aux Demi-Groupes n-Potents.
Tight semigroups.