stredné školy 17 [vynechat] základné školy 16 [vynechat] extrémizmus 13 [vynechat] extremism 9 [vynechat] secondary schools 9 [vynechat] elementary schools 8 [vynechat] learners 7 [vynechat] názory a postoje 7 [vynechat] žiaci 7 [vynechat] drogy 4 [vynechat] terorizmus 4 [vynechat] terrorism 4 [vynechat] views and attitudes 4 [vynechat] mládež 3 [vynechat] parents 3 [vynechat] rasizmus 3 [vynechat] rodičia 3 [vynechat] deti a mládež 2 [vynechat] detská agresivita 2 [vynechat] drugs 2 [vynechat] pedagógovia 2 [vynechat] racism 2 [vynechat] scientific research 2 [vynechat] vedecký výskum 2 [vynechat] voľný čas 2 [vynechat] šikanovanie 2 [vynechat] alcoholism 1 [vynechat] alkoholizmus 1 [vynechat] children and youth 1 [vynechat] demokracia 1 [vynechat]