1 literature reference for Salmo ischchan aestivalis Fortunatov, 1926:

Author: Savvaitova, K.A. and T. Petr
Year: 1999
Title: Fish and fisheries in Lake Sevan, Armenia, and in some other high altitude lakes of Caucasus.
Source: p. 279-304. In T. Petr (ed.) Fish and fisheries at higher altitudes: Asia. FAO Fish. Tech. Pap. No. 385. FAO, Rome. 304 p.