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Terry Grande, Howard Laten, J. Andrés López: Phylogenetic Relationships of Extant Esocid Species (Teleostei: Salmoniformes) Based on Morphological and Molecular Characters. In: Copeia. Nr. 4, 2004, ISSN0045-8511, S. 743–757, (PDF; 344 kB) (Memento vom 14. Juni 2014 im Internet Archive).