J. A. Marcos Sierra, J. Tenorio Iglesias, A. Millán Jiménez, J. Pérez Molina, and C. Rosa Fernández, “Evaluation of a typology for drug addiction”, Apunt. Psic., vol. 19, no. 2, pp. 263–282, May 2001, doi: 10.55414/50g65h71.