1. Stream tracing — Mid Appalachian Region;Dunn;Bull. Nat. Speleol. Soc. (U.S.A.),1957
2. Fluorescent tracers for dispersion measurements;Feuerstein;Amer. Soc. Civ. Engr.,1963
3. Trout Farm Manager, Achhabal, Kashmir;Hamid,1970
4. Photodensitometric measurements of dye concentration in the ocean;Ichiye;Limnol. Oceanogr.,1966