Hario M, Uuksulainen J. Mercury load according to moulting area in primaries of the nominate race of the Lesser Black-backed Gull Larus f. fuscus. Ornis Fenn [Internet]. 1993Mar.31 [cited 2024Nov.22];70(1):32–39. Available from: https://ornisfennica.journal.fi/article/view/133361