Merkhatuly, N., A. Iskanderov, S. Zhokizhanova, and B. Erniyazova. “Synthesis of Donor-Acceptor Compounds Based on Azulene”. Chemical Bulletin of Kazakh National University, Vol. 107, no. 4, Dec. 2022, pp. 22-28, doi:https://doi.org/10.15328/cb1299.