During the latter Soviet time there was a strong net migration in the USSR. Most of the Ukrainian contingent that was leaving the Ukrainian SSR for other areas of the Union settled in places with other migrants. The cultural separation from Ukraine proper meant that many were to form the so-called "multicultural soviet nation". In Siberia, 82% of Ukrainian entered mixed marriages, primarily with Russians. This meant that outside the parent national republic there was little or no provision for continuing a diaspora function. Thus only in large cities such as Moscow would Ukrainian literature and television could be found. At the same time other Ukrainian cultural heritage such as clothing and national foods were preserved. According to Soviet sociologist, 27% of the Ukrainians in Siberia read Ukrainian printed material and 38% used the Ukrainian language. From time to time, Ukrainian groups would visit Siberia. Nonetheless most of the Ukrainians did assimilate.