GRACHYOV, O. V. Analysis of parameters change effect of weight flatness functions in boundary density and ash content on model stability of coal fractional composition description. Science and Transport Progress , [S. l.], n. 3(45), p. 82–92, 2013. DOI: 10.15802/stp2013/14548. Disponível em: https://stp.ust.edu.ua/article/view/14548. Acesso em: 7 may. 2024.