1. Oligophrenia combined with congenital ichthyosiform erythrodermia, spastic syndrome and macular-retinal degeneration. A clinical and genetic study;Sjögren;Acta Genet Stat Med,1956
2. Oligophrenia in combination with congenital ichthyosis and spastic disorders. A clinical and genetic study;Sjögren;Acta Psychiatr Neurol Scand,1956
3. Ichthyosis—Little's disease;Pardo-Castelló;Arch Dermatol Syph (Chicago),1932
4. Frenastenia e dermatosi;Pisani;Riv Sper Freniat,1935
5. Über einige Sonderformen des “angeborenen Schwachsinns.”;Laubenthal;Z Ges Neurol Psychiatr,1938