title: [Problems of scientific research on internal migration of the population of the USSR].
authors.forename: P M
authors.initials: PM
authors.lastname: Ilin
authors.forename: W W
authors.initials: WW
authors.lastname: Pokszyszewski
mesh_terms: D003226:Congresses as Topic; D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D011153:Population; D011157:Population Dynamics; D014586:USSR
keywords: Conferences And Congresses; Demographic Factors; Developed Countries; Migration; Migration, Internal; Population; Population Dynamics; Ussr