Rubanov Vitalij G., Rubanova Elena V. «The main thesis of the V.I. Vernadsky noospheric concept» // Tomsk State University Journal of Philosophy, Sociology and Political Science 2016. №3 (35) C.54-65
Minyar-Beloruchev Konstantin V. «Methodological background for studying the phenomenon of expansion (based on U.S. nineteenthcentury expansion)» // 2011. №346 C.77-82