1. Blomert L, Koster C, von Mier H, Kean M-L (1987) Verbal communication abilities of aphasic patients: the Everyday Language Test. Aphasiology 1(6): 463–474
2. Blomert L, Kean M-L, Schaap T (1988) ANTAT-Alledaagse Taalvaardigheids Test voor afasie-patienten. Final report. Praeventiefonds. The Hague
3. Guttman L (1981) What is not what in theory construction. In: Borg I (ed) Multidimensional data representations: whan and why. Mathesis, Michigan
4. Huber W, Poeck K, Willmes K (1984) The Aachen Aphasia Test. In: Rose F (ed) Progress in aphasiology, Raven, New York (Advances in Neurology, vol 42 )
5. Kean M-L (1985) On the efficacy of therapy in aphasia: the present state of inquiry and its implications for future research. Internal report. Max Planck Institute for Psycholinguistics, Nijmegen