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Message * Problemy Drevnego Zemledelii︠a︡ i Ėvoli︠u︡t︠s︡ii Pochv V Lesnykh i Stepnykh Landshaftakh Evropy Materialy Mezhdunarodnogo Nauchnogo Seminara, G. Belgorod, 19-21 Okti︠a︡bri︠a︡ 2006 G. - 5957102504 - 9785957102502