1. S. Meljanac, A. Samsarov, and R. Štrajn, JHEP 1208, 127 (2012).
2. T. Jurić, S. Meljanac, and R. Strajn, Phys. Lett. A377, 2472 (2013); Int. J. Mod. Phys. A 29, 1450022 (2014).
3. T. Jurić, D. Kovačević, and S. Meljanac, SIGMA 10, 106 (2014).
4. S. Meljanac, Z. Škoda, and M. Stojić, accepted in Lett. Math. Phys., arXiv: 1409.8188.
5. J. Lukierski and A. Nowicki; in Proceeding of the Symposium at the XXI Internationaly Colloquium on Group Theoretical Methods in Physics, Goslar, Gernamy, 1996 (Heron Press, Sofia, 1997), p. 186.