. Publications of the Laboratory of Physical Organic Chemistry . M.A. Anisimova, G.F. Lebedeva, I.V. Perminova . Influence of Zonal Factor and Agricultural Treatment on Atrazine Toxicity in Soil Media in Relation to Wheat Plant . P.I. Dem'yanov, G. Boche . MNDO and PM3 Study and Regioselectivity of Alkylation of Lithium Derivatives of 1,3,3-Trisubstituted Propynes . I.V. Perminova, N. Yu. Yashchenko, M.A. Anisimova, N.A. Kulikova . Impact of humic substances on the toxicity of xenobiotic organic compounds