1. A case of brain tumor at the base of the second left frontal convolution, with autopsy; the only positive localizing symptom was agraphia uncombined with any form of aphasia;Gordinier, H.C.;Am.7 Med Sci
2. Agraphie pure (dynamique?) d'origine frontale: a propos d'une observation;Aimard, G.; Devic, M.; Lebel, M.; Trouillas, P.; Boisson, D.;Rev Neurol,1975
3. Troubled letters but not numbers: Domain specific cognitive impairments following focal damage in frontal cortex;Anderson, S.W.; Damasio, A.R.; Damasio, H.;Brain,1990
4. Pure apraxic agraphia with recovery after drainage of a left frontal cyst;Hodges, JR;Cortex,1991
5. Gerstmann syndrome without aphasia: a longitudinal study;Vemey, N.R.;Brain Cogn,1984