Nina V. Zaitseva and  Pavel Z. Shur and  Nina G. Atiskova,  Development of Risk-Based Ambient Air Quality Standards in the Russian Federation on the Basis of Risk Assessment Procedures Harmonized with International Approaches.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2014, vol. 90(6). 440 - 442
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