1. Die Tagesperiodik geblendeter und geruchselimnierter Bachsaiblinge Salvelinus fontinalis Mitchel (Pisces);Bertmar;Oikos, Suppl.,1970
2. A further contribution to using ultrasonic sensors for fish activity studies;Byrne;Trans. Am. Fish. Soc.,1971
3. Influence of light on activity of brown trout (Salmo trutta);Chaston;J. Fish. Res. Bd. Canada,1968
4. Diurnal variations in motor activity of the largemouth black bass, Micropterus salmoides (Lacepede);Cummings;Ph.D. thesis,1968
5. Using the Doppler effect to detect movements of captive fish in behavior studies;Cummings;Trans, Am. Fish. Soc.,1963