1. Ageing of coarse fish;Backiel;FAO Rep. T.I./E.I.F.A.C.,1968
2. Leeftijdsbepaling en groeionderzoek bij vissen;Baerends,1947
3. A critidal study of the scales of two specimens of starved and excessively fed trout. Salmo irideus;Bathia;J. Cons. perm. int. Explor. Mer.,1931
4. Factors involved in the production of annual zones in the scales of the rainbow trout II;Bathia;J. Exp. Biol.,1932