scholarly article by Jerzy Lukierski et al published October 1992 in Physics Letters B

scholarly article by Jerzy Lukierski & Anatol Nowicki published April 1992 in Physics Letters B

scholarly article by Jerzy Lukierski et al published May 1994 in Journal of Mathematical Physics

scholarly article by Jerzy Lukierski et al published June 1993 in Journal of Geometry and Physics

scholarly article by Jerzy Lukierski et al published November 1991 in Physics Letters B

scholarly article