Fletta eftir höfundi "Kraus, Ludwig"

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The 2007 ESPAD report : substance use among students in 35 European countriesThe 2007 ESPAD report : substance use among students in 35 European countries

Hibell, Björn 1945; Guttormsson, Ulf; Ahlström, Salme 1945; Balakireva, Olga; Þóroddur Bjarnason 1965; Kokkevi, Anna; Kraus, Ludwig; European School Survey Project on Alcohol and Other Drugs (Swedish council for information on alcohol and other drugs, CAN, 2009)
The 2011 ESPAD report : substance use among students in 36 European countriesThe 2011 ESPAD report : substance use among students in 36 European countries

Hibell, Björn 1945; Guttormsson, Ulf; Ahlström, Salme 1945; Balakireva, Olga; Þóroddur Bjarnason 1965; Kokkevi, Anna; Kraus, Ludwig; European School Survey Project on Alcohol and Other Drugs (The Swedish council for information on alcohol and other drugs, CAN, 2012)

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