[Vacation pass under free sky. Retrospective view of a successful leisure time opportunity].
Staub
Angelika
A
AngelikaStaub@web.de
D000293:Adolescent; D002165:Camping; D002648:Child; D003405:Creativity; D004493:Education; D005858:Germany; D006801:Humans; D007899:Leisure Activities; D012621:Seasons