1. AOAC, 1984. In: Method of Analysis. Association of the Official Analytical Chemists, Washington, DC, 1141 pp.
2. Untersuchungen uber die Unwandlung von Verfutterten K-vitaminen durch Austausch der Seitenkette und die Rolle der Darmbarkterien Heirbei;Billeter;Biochem. Z.,1964
3. RNA–DNA ratios as indicators of recent growth rates of a fish;Bulow;J. Fish. Res. Board Can.,1970
4. Selection of suitable tissues for use in the RNA–DNA ratio technique of assessing recent growth rate of a fish;Bulow;Iowa State J. Sci.,1971
5. Seasonal variations in RNA–DNA ratios and in indicators of feeding, reproduction, energy storage, and condition in a population of bluegill, Lepomis macrochirus, Rafinesque;Bulow;J. Fish Biol.,1981