Contraction based classification of supersymmetric extensions of   kinematical Lie algebras
  We study supersymmetric extensions of classical kinematical algebras from the point of view of contraction theory. It is shown that contracting the supersymmetric extension of the anti-de Sitter algebra leads to a hierarchy similar in structure to the classical Bacry-L\'evy-Leblond classification 
R. Campoamor-Stursberg, M. Rausch de Traubenberg