1. Aas-Hansen O., Johnsen H.K., Vijayan M.M., Jorgensen E.H., (2003). Development of seawater tolerance and concurrent hormonal changes in fed and fasted Arctic charr at two temperature regimes Aquaculture 222: 135–48
2. Adams S.M., (2003). Establishing causality between environmental stressors and effects on aquatic ecosystems Hum. Ecol. Risk Assess. 9: 17–35
3. Anderson T.A., Wu T.H., (2002). Extraction, cleanup, and analysis of the perchlorate anion in tissue samples Bull. Environ. Contam. Toxicol. 68: 684–91
4. Anderson, T.A., Smith P.N., McMurry, S.T., Carr, J.A., Theodorakis, C.W., Jackson, W.A. and Dixon, K.R. (2004). Ecological risk assessment of ammonium perchlorate on fish, amphibian, and mammals in the Lake Belton and Lake Waco watersheds. An integrated laboratory and field investigation. In U.S. Army Corps of Engineers, Bosque and Leon River Watershed Study, Final Report. Fort Worth, TX: U.S. Army Corps of Engineers Fort Worth District
5. Bhattacharya L., (1995). Histological and histochemical alterations in the thyroid activity of endosulphan treated Oreochromis mossambicus J. Environ. Biol. 16: 347–51