Ketelaars, C., Horwitz, E., Sytema, S., Bos, J., Wiersma, D., Minderaa, R., & Hartman, C. A. (2007). Brief Report: Adults with Mild Autism Spectrum Disorders (ASD): Scores on the Autism Spectrum Quotient (AQ) and Comorbid Psychopathology. Springer US.

Ketelaars, Cees, Ernst Horwitz, Sjoerd Sytema, Johan Bos, Durk Wiersma, Ruud Minderaa, a Catharina A. Hartman. Brief Report: Adults With Mild Autism Spectrum Disorders (ASD): Scores On the Autism Spectrum Quotient (AQ) and Comorbid Psychopathology. Springer US, 2007.

Ketelaars, Cees, et al. Brief Report: Adults With Mild Autism Spectrum Disorders (ASD): Scores On the Autism Spectrum Quotient (AQ) and Comorbid Psychopathology. Springer US, 2007.