1. M. Huber and W. Meier, “Sulzer packings for rectification under vacuum and material removal,” Sulzer Techn. Rundachau, 57, No. 1, 3–5 (1975).
2. W. Meier, “Rectification under vacuum using Sulzer packings BX and CY,” Sulzer Tech. Rev., 52, No. 3, 147–152 (1970).
3. M. V. Klykov and T. V. Alushkina, “Modeling of liquid distribution and mixing in mass-transfer equipment columns having dumped packings,” Chem. Petrol. Eng., 55, No. 9, 775–784 (2020).
4. USSR Inventor’s Certificate 697161, IPC B 01 D 53/20, Packings for Heat-Mass Transfer Apparatuses [in Russian], claimed by M. V. Klykov, A. G. Svinukhov, and R. B. Izmailov, No. 2522337/23–26 (1979).
5. USSR Inventor’s Certificate 1149479, IPC B 01 D 53/20, Packings for Heat-Mass Transfer Apparatuses [in Russian], claimed by M. V. Klykov and S. N. Sandalov, No. 3595802/23–26 (1986).