Okulicz-Kozaryn, K., and A. Borucka. “The Patterns of Alcohol Use Among Warsaw Adolescents across 20 Years - from 1988 to 2008”. International Journal of Alcohol and Drug Research, Vol. 2, no. 2, Sept. 2013, pp. 37-44, doi:10.7895/ijadr.v2i2.102.