Michael Lvovitch Tsetlin (the surname is also written Cetlin, Tzetlin, Zeitlin, Zetlin; cyrillic: Михаил Львович Цетлин) (22 September 1924 – 30 May 1966) was a Soviet mathematician and physicist who worked on cybernetics. He introduced the Gelfand–Tsetlin basis for finite-dimensional representations of classical groups. He was the founder of the learning automaton approach to machine learning.
Tsetlin M.L. Automation theory and modeling of biological systems. Academic Press; 1973.