1. G. S. Varankina and D. S. Rusakov, “Modification of phenol-formaldehyde resin using byproducts of sulfate-cellulose production,” Izv. S.-Peterb. Lesotekh. Akad., No. 204, 130–137 (2013).
2. A. N. Chubinskii, G. S. Varankina, D. S. Rusakov, and S. V. Denisov, “Acceleration of the process of gluing veneers with phenol-formaldehyde adhesives,” Izv. St-Peterb. Lesotekh. Akad., No. 194, 121–128 (2011).
3. G. S. Varankina, D. S. Rusakov, A. V. Ivanova, and A. M. Ivanov, “Reduction of toxicity of wood glued materials, based on lignosulfonates modified with ureaformaldehyde resins,” Sist., Metody, Tekhnol., No. 3, 154–160 (2016).
4. A. V. Dubina and V. N. Martsul’, “Use of lignosulfonates for wastewater treatment containing components of urea-formaldehyde resins,” Vestn. Vitebsk. Gos. Tekhnol. Univ., No. 27, 141–145 (2014).
5. I. P. Deineko, “Utilization of lignins: Achievements, problems and prospects,” Khim. Rastit. Syr’ya, No. 1, 5–20 (2012).