Alimzhanova, M.B. et al. 2012. Effects of Moisture Content and Solvent Additive on Headspace Solid-Phase Microextraction of Total Petroleum Hydrocarbons from Soil. Eurasian Chemico-Technological Journal. 14, 4 (Nov. 2012), 331–335. DOI:https://doi.org/10.18321/ectj131.