1. Imbert R. Linite et calcification gastrique. Bull et mém Soc Radiol méd France 1931; 19: 351.
2. Beliczay PM. Calcification of gastric wall. Magy Roentgen Koel 1937; 11: 145–147 (cited by Batlan LE)
3. Abel W. Zur Diagnose des Magenwandverkalkungen. Fortschr Roentgenstr 1939; 59: 57–64.
4. Riedel Ol Cancer calcificado de estomago. Rev méd Chile 1940; 68: 334. (cited by Batlan LE)
5. Tenconi E. Calcification del cancer de estomago. Radiologia 1944; 7: 113–117.