1. E.C. Prolingheuer, J.M. Barnes, R. Kopp, Advance in NDI Elastoner Chemisty, PolyUrethanes World Congress, vol. 91 (Technomic Publ Co lnc, Laneaster, 1991), pp. 464–472
2. X.F. Wang, B.H. Xu, X.M. Liu, G.Y. Lou, J. Yang, CN1194972A (1998)
3. M.A. Zolfigol, A. Khazaei, A.R. Moosavi-Zare, A. Zare, H.G. Kruger, Z. Asgari, V. Khakyzadeh, M. Kazem-Rostami, J. Org. Chem. 77, 3640 (2012)
4. H. Wang, X. Peng, C. Shi, X. Dong, Y. Tai, H. Liu, Res. Chem. Intermed. (2013). doi: 10.1007/s11164-013-1054-y
5. M. Brandt, S. Klein, G. Wegener, US 20030171627A1 (2003)