Informacija ob obshh epol'skom simpozium e po teme „protivoarozionnye melioracii kak osnova racional'nogo i spol'zo vani ja ploshh adej na vozvy sh ennostjah”
EN
Information on all-Polish scientific symposium under the motto “antierosion reclam ationsasa basis of ratio nalutilization of upland areas”