Gary L. Diamond and Patrick R. Durkin Effects of Surfactants on the Toxicitiy of Glyphosate, with Specific Reference to RODEO Report submitted to Leslie Rubin, COTR, Animal and Plant Health Inspection Service (APHIS). Biotechnology, Biologics and Environmental Protection, Environmental Analysis and Documentation, United States Department of Agriculture, February 6, 1997
Dean G. Thompson Ecological Impacts of Major Forest-Use Pesticides Ecological Impacts of Toxic Chemicals, Bentham Science Publishers Ltd, 2011, Chapter 5, 88-110. quote"...owing to the chemical complexity
of the POEA surfactant and resultant difficulty in analysing for it in complex environmental matrices, the
environmental behaviour of POEA in natural forest ecosystems has not been specifically studied."