Voronkov; Vlasova; Belousova; Vlasov; Vakul'Skaya; Prozorova; Khutsishvili Russian Journal of Organic Chemistry, 2013 , vol. 49, # 1 p. 17 - 21 Zh. Org. Khim., 2013 , vol. 49, # 1 p. 27 - 31,5