Hartig, T., Catalano, R., & Ong, M. (2007) Cold summer weather, constrained restoration, and the use of anti-depressants in Sweden. Journal of Environmental Psychology, 27, 107-116.

Catalano, R., Bruckner, T., Hartig, T., & Ong, M., (2005). Population stress and the Swedish sex ratio. Paediatric and Perinatal Epidemiology, 19, 413-420.

Catalano, R., & Hartig, T (2004) Economic predictors of admissions to inpatient psychiatric treatment in Sweden. Social Psychiatry and Psychiatric Epidemiology, 39, 305-310.

Ong, M., Catalano, R., & Hartig, T (2003) The effect of increased co-payments on prescriptions for anti-depressants, anxiolytics, and sedatives in Sweden. Clinical Therapeutics, 25, 1262-1275.

Catalano, R., & Hartig, T (2001) Communal bereavement and the incidence of very low birthweight in Sweden. Journal of Health and Social Behavior, 42, 333-341.

Catalano, R., Hansen, H-T., & Hartig, T (1999) The ecological effect of unemployment on the incidence of very low birthweight in Norway and Sweden. Journal of Health and Social Behavior, 40, 422-428.