TY - JOUR A1 - Hoehnke, Hans-Jürgen A1 - Johnson, K. W. T1 - 3-characters are sufficient for the group determinant BT - Three-characters are sufficient for the group determinant Y1 - 1995 ER - TY - JOUR A1 - Hoehnke, Hans-Jürgen T1 - On certain classes of categories and monoids constructed from abstract Mal'cev clones, IV Y1 - 1995 ER - TY - JOUR A1 - Hoehnke, Hans-Jürgen T1 - A Birkhoff theorem for partial algebras via completion Y1 - 1996 ER - TY - JOUR A1 - Hoehnke, Hans-Jürgen T1 - Remarks and problems on varieties and quasivarieties, clones and quasiclones Y1 - 1996 ER -