Danish Researches in the Atlantic and Mediterranean on the Life-History of the Freshwater-Eel (Anguilla vulgaris, Turt.) With notes on other species. With Plates IV - IX and 2 Text-figures. S.-Abdr. aus Internationale Revue der gesamten Hydrobiologie und Hydrographie. Bd. 5 - Schmidt, Johannes 1877-1933 ((Dr. Werner Klinkhardt), 1912)