AdlerI., & KandelD. B.: Cross-cultural perspectives on developmental stages in adolescent drug use.Journal of Studies on Alcohol42 (1981): 701–715
2.
BaileyS. L.: Adolescents’ multisubstance use patterns: The role of heavy alcohol and cigarette use.American Journal of Public Health82 (1992): 1220–1224
3.
Blaze-TempleD., & LoS. K.: Stages of drug use: A community survey of Perth teenagers.British Journal of Addiction87 (1992): 215–225
4.
DebetsP., & BrouwerE.: Mokken scale analysis for polychotomous items: Users Manual version 1.50, IEC Progamma1989
5.
DinwiddieS. H., & ReichT., & CloningerC. R.: The relationship of solvent use to other substance use.American Journal of Drug and Alcohol Abuse17 (1991): 173–186
6.
DonovanJ. E., & JessorR.: Problem drinking and the dimension of involvement with drugs: A guttman scalogram analysis of adolescent drug use.American Journal of Public Health73 (1983): 543–552
7.
KandelD.: Stages in adolescent involvement in drug use.Science190 (1975): 28, 912–914
8.
KandelD. B., & YamaguchiK., & ChenK.: Stages of progression in drug involvement from adolescence to adulthood: Further evidence for the Gateway theory.Journal of Studies on Alcohol53 (1992): 447–457
9.
KandelD.: Substance abuse by adolescents in Israel and France: A cross-cultural perspective.Public Health Reports99 (1984): 277–283
10.
KandelD. B., & FaustR.: Sequence and stages in patterns of adolescent drug use.Archives of General Psychiatry32 (1975): 923–932
11.
Le BlancM., & FrechetteM.: Male criminal activity from childhood through youth: Multilevel and development perspectives.New York: Springer-Verlag1989
12.
MokkenR. J.: A theory and procedure of scale analysis.The Hague: Mouton1971.
13.
PedersenW.: Reliability of drug use responses in a longitudinal study.Scandinavian Journal of Psychology31 (1990): 28–33
14.
PedersenW.: Drugs in adolescent worlds: A longitudinal study of adolescent drug use socialization.Avhandling for den filosofiske doktorgrad, Institutt for Psykiatri, Universitetet i Oslo, 1991
15.
PedersenW.: Over grenselinjen: Hasjbruk blant ungdom. In: WaalH., & MiddelthonA.-L. (eds.): Narkotikaforebygging mot år 2000.Universitetsforlaget, Oslo1992
16.
RobinsL. N.: The natural history of adolescent drug use.American Journal of Public Health74 (1984): 656–657
17.
SkogO.-J.: The validity of self-reported drug use.British Journal of Addiction87 (1992): 539–548
18.
YamaguchiK., & KandelD. B.: Patterns of drug use from adolescence to young adulthood: II. Sequences of progression.American Journal of Public Health74 (1984): 668–672