Matti Joukamaa

Temperament Clusters in a Normal Population: Implications for Health and Disease

Eliza Congdon, Heikki Mannila, Tuija Tammelin, 2012, PloS one.

Inter-correlations between Cloninger's temperament dimensions — A meta-analysis

Juha Veijola, Jouko Miettunen, J. Veijola, 2008, Psychiatry Research.

Early Environment and Neurobehavioral Development Predict Adult Temperament Clusters

Eliza Congdon, Heikki Mannila, Jouni K. Seppänen, 2012, PloS one.