2 citations to https://www.mathnet.ru/rus/znsl4545

1. Minsoo Kim, Yejin Kim, Hyosoo Kim, Wenhua Piao, Changwon Kim, “Evaluation of the k-nearest neighbor method for forecasting the influent characteristics of wastewater treatment plant”, Front. Environ. Sci. Eng., 10:2 (2016), 299  
2. Nechaev S.K., Sobolevski A.N., Valba O.V., “Planar Diagrams From Optimization for Concave Potentials”, Phys. Rev. E, 87:1 (2013), 012102