* Experience of the editor and his colleagues [[interne link|Feedback]]
* [http://www.knmp.nl/vakinhoud/farmacotherapie/informatorium-medicamentorum-1 Informatorium medicamentorum] and [http://www.knmp.nl/ Kennisbank KNMP] (in Dutch) * Psychotropic Drug Directory - Stephen Bazire (update every year)* Anidepressiva - De Jonghe,F.; Swinkels,J.; Vergouwen,T ; Brink,G van den. (in Dutch, regelamtig vernieuwd)