A. N. Nilsson, N. Minakawa, und P. B. H. Oberg, „The diving beetles of the Kuril Archipelago in the Far East of Russia (Coleoptera: Dytiscidae)“., contrib.entomol., Bd. 47, Nr. 2, S. 365–376, Aug. 1997, doi: 10.21248/contrib.entomol.47.2.365-376.