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Books about Heincke:
Variation und Verwandtschaft von Pleuronectes flesus L. und Pl. platessa L., untersucht mittelst der Heincke'schen... by G. DUNCKER (1895)
Illustrierte Naturgeschichte der Tiere: Band II. Abteilung 1: Kriechtiere und Lurche. Fische (German Edition)... (2001)
Wiki information Heincke:
Ernst Heincke is a German born American sprint canoer who competed in the late 1960s. He was eliminated in the repechages of the K-4 1000 m event at the 1968 Summer Olympics in Mexico City.