1. Rhododendron in the Native Flora of U.S.S.R;Alexsandrowa,1975
2. Flora Coreana, Appendix;Anonymus,1979
3. Trees and Shrubs Hardy in the British Isles III;Bean,1976
4. Herbarium materials of trees and shrubs from the Democratic People's Republic of Korea collected in the years 1978 and 1980;Boratyński;Fragm. Florist. Geobot,1984