For citations:
Laptev A.V., Lukin A.Yu., Belikov N.V., Demina O.V., Varfolomeev S.D., Barachevsky V.A., Khodonov A.A., Shvets V.I. SYNTHESIS AND STUDY OF THE PHOTOCHROMIC BEHAVIOR OF SUBSTITUTED 6'-NITRO-1,3,3-TRIMETHYL-5-VINYLSPIRO(INDOLINO-2,2'-[2H]CHROMENES). Fine Chemical Technologies. 2013;8(4):18-26. (In Russ.)