1. Die katatonie oder das spannungsirresein;Kahlbaum, K.L.,1874
2. Catatonia;Kahlbaum, K.L.,1973
3. (Translated by Barclay RM);Praecox, Kraepelin E.Dementia; Paraphrenia,1971
4. Dementia Praecox or the Group of schizophrenias, (Translated by Zinkin J);Bleuler, E.,1950
5. The catatonic syndrome;Gelenberg, A.J.;Lancet,1976