mahmoodi,N. , , Besharati-Seidani,T. , and Kiyani,H. . "Synthesis and investigation of photochoromic behavior of bicyclic aziridine based on calix pyrrole as an intelligent molecule", Advanced Materials and New Coatings, 1, 2, 2012, 41-48. doi: /amnc.2012.1.2.4