A study of suspended particulate matter in Lahore (Pakistan) - K. Hussain; Ruby Riffat; A. Shaukat; M. Ashraf Siddiqui (Advances in Atmospheric Sciences, 1990)

Plasma vitellogenin levels in pre-spawning rainbow trout,Oncorhynchus mykiss, during acid exposure - Robert L. Roy; Sylvia M. Ruby; David R. Idler; Ying So (Archives of Environmental Contamination and Toxicology, 1990)