[Survey by the Public Health department on television viewing by students of the 4th class in the Schleswig-Flensburg district 1988/89].
Stolle
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Gesundheitsamt des Kreises Schleswig-Flensburg.
D002648:Child; D005260:Female; D005858:Germany; D006801:Humans; D007899:Leisure Activities; D008297:Male; D011795:Surveys and Questionnaires; D013690:Television; D013997:Time Factors
Umfrage des Gesundheitsamtes zum Fernsehverhalten der Schüler der 4. Klassen im Kreis Schleswig-Flensburg 1988/89.