Popov I. (2002), “Periodical systems in biology (a historical issue),” Verhandlungen zur Geschichte und Theorie der Biologie 9: 55-69.

Popov I. (2005), Orthogenesis versus Darwinism: A Historical Issue. Saint-Petersburg: Saint-Petersburg State University. (In Russian with an English summary.)

Popov I. (2006), “On the program ’Ñontours of Evolution’: How to generalize everything?” Philosophia nauki (Philosophy of science) 1: 3-17. (In Russian with an English summary.)

Popov I. (2006), “The American Northwest salmon crisis”, Problems of fisheries 1: 61-72. (In Russian with an English summary.)

Popov I. (2006), “Directed evolution of mankind and biosphere,” Impact of Radiation Risk in Normal and Emergency Situations. Arrigo A. Cigna & Marco Durante (eds.). NY: Springer Verlag.