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Probatova, N. S., A. P. Sokolovskaya & E. G. Rudyka. 1989. Chromosome numbers in some species of vascular plants from Kunashir Island (the Kuril Islands). Bot. Žhurn. (Moscow & Leningrad) 74: 1675–1678.
SOKOLOVSKAYA, A.P., & N.S. PROBATOVA. 1973. Karyosystematic investigations of the Far East species of Poa L. (in Russian) Bot. zurn. (Moscow & Leningrad) 58: 89-96.