1. A. M. Kagan, L. A. Yudina, A. S. Pushnov, et al., “Perfection of the designs of irregular metal packing,” Khim. Prom. Segodnya, 85, No. 1, 45–48 (2008).
2. B. A. Sokol, A. K. Chernyshev, D. A. Baranov (ed.), et al., Packing for Mass-Exchange Columns, Moscow (2009).
3. T. M. Farakhov, M. M. Basharov, and I. M. Shigapov, “Hydraulic characteristics of new highly effective irregular heat and mass transfer packing,” Neftegaz. Delo, No. 2, 192–207 (2011).
4. A. S. Ryabushenko, A. S. Pushnov, and M. G. Berengarten, “Regular metal packing for heat and mass transfer processes with direct phase contact,” Khim. Neftegaz. Mashinostr., No. 6, 14–15 (2006).
5. A. S. Pushnov, M. G. Berengarten, A. M. Kagan, et al., “Helicoidal-structured packing for heat and mass exchange with direct phase contact,” Khim. Neftegaz. Mashinostr., No. 10, 7–9 (2007).