[Physical training of pupils in rural secondary schools of the Bykhovskii region].
D000293:Adolescent; D005178:Faculty; D006801:Humans; D010806:Physical Education and Training; D012424:Rural Population; D012572:School Health Services; D014586:USSR
Nekotorye dannye o sostoianii fizicheskogo vospitaniia uchashchikhsia obshcheobrazovatel'nykh sel'skikh shkol Bykhovskogo raĭona