1. Alemà, G. (1967) Personal communication concerning two unpublished cases.
2. Blaski kostne (Wapniowe) w oponie pajeczej rdzenia kregowego;Arend;Neurol. Neurochir. Psychiat. pol.,1961
3. Un raro caso di calcificazioni diffuse dell' aracnoide spinale (aracnoidite calcarea);Bianchi-Maiocchi;Arch. ortop. (Milano),1955
4. Ossification diffuse de l'arachnoïde spinal. Présentation d'un cas;Carbone;Acta neurol. belg.,1954
5. Studies on the cerebro-spinal fluid and its pathway, Part 9 (Calcareous and osseous deposits in the arachnoidea);Cushing;Bull. Johns Hopk. Hosp.,1915