D.E. Wilson e D.M. Reeder, Cervus nippon grassianus in Mammal Species of the World. A Taxonomic and Geographic Reference, 3ª ed., Johns Hopkins University Press, 2005, ISBN 0-8018-8221-4.
Harris, R.B. 2008, Cervus nippon grassianus su IUCN Red List of Threatened Species, Versione 2014.3, IUCN, 2014.