1 literature reference for Trisopterus esmarki (Nilsson, 1855):

Author: Svetovidov, A.N.
Year: 1979
Title: Gadidae.
Source: p. 300-320. In J.C. Hureau and Th. Monod (eds.) Check-list of the fishes of the north-eastern Atlantic and of the Mediterranean (CLOFNAM). UNESCO, Paris. Vol. 1.