1. Sergeev, Yu.A., Kuznetsov, N.M., and Chirkov, A.V., Karbamid: svoistva, proizvodstvo, primenenie: Monografiya (Urea: Properties, Production, Application. A Monograph), Nizhny Novgorod: Kvartz, 2015.
2. Vestnik khimicheskoi promyshlennosti (Bulletin of the Chemical Industry), Moscow: NIITEKHIM, 2018.
3. Sergeev, Yu.A., Khim. Tekhnika, 2011, no. 3, p. 17.
4. Ivanov, A.A., Kosyrev, V.M., Pronin, A.I., Sergeev, Yu.A., Anderzhanov, R.V., Vorob’ev, A.A., and Strekalovskikh, A.S., Chem. Prom-st., 2005, vol. 82, no. 9, p. 436.