PRINCIPLES OF HIGHER EDUCATION DEVELOPMENT IN WORKS OF RUSSIAN PHILOSOPHERS AND SCIENTISTS OF 20TH CENTURY Article Volnyakova O.A., Arapov O.G., Arapova E.A., Solodukhin D.V. REVISTA PRAXIS EDUCACIONAL. UNIV ESTADUAL SUDOESTE BAHIA. Vol. 16. 2020. P. 337-355