1. Ambron E, Della Sala S, McIntosh, RD. Closing-in behaviour in children reflects a deficit of attention-switching. In: Proceedings of the Experimental Psychology Society, Edinburgh Meeting, 4–7 July 2007, PS2:50; 2007. p. 113.
2. Constructional Apraxia and hemispheric locus of lesion;Arrigoni;Cortex,1964
3. Closing-in without drawing disorders;Conson;Cortex,2009
4. Clock drawing errors in dementia: neuropsychological and neuroanatomical considerations;Cosentino;Cognitive and Behavioral Neurology,2004
5. Critchley M. Constructional apraxia. In: Arnold E, editor. The Parietal Lobes. London; 1953, p. 173–202 [chapter 6].