1. Electrophoretic identity between allis shad, Alosa alosa (L.), and twaite shad, A.fallax (Lacepede)
2. C. Douchement (1981 ). Les aloses des fleuves francaisAlosa alosaLinne 1758 etAlosa fallaxLacepede 1803. Biometrie, ecobiologie, autonomie des populations.Doctoral thesis , Universite des Sciences et Techniques du Languedoc, Montpellier.
3. P. S. Maitland (1972 ). A key to the freshwater fishes of the British Isles . Freshwater Biological Association Scientific Publications27 .