[Study on the daily course of 15- to 16-year-old students in the expanded high-school].
D000293:Adolescent; D005260:Female; D005859:Germany, East; D006801:Humans; D008297:Male; D011998:Recreation; D012572:School Health Services
Studie zum Tagesablauf 15- bis 16 jähriger Schüler der erweiterten Oberschule.