Dauns John; Fuchs László: ϰ-products of slender modules. In: Acta scientiarum mathematicarum, (56) 3-4. pp. 205-213. (1992)
Dauns John; Hofmann Karl Heinrich: Nilpotent groups and automorphisms. In: Acta scientiarum mathematicarum, (29) 3-4. pp. 225-246. (1968)