TY JOUR TI S-curves and entropic conditions of system stabilization KW S-curves KW their diversity KW entropy KW negentropy KW system stabilization KW physical and chemical regularities KW coronavirus scenario JO Russian Journal of Biological Physics and Chemisrty AU Korablev, G.A. PY 2021 IS 6 PB Federal State Educational Institution of Higher Education Sevastopol State University