1. Finlay, D. W. (1891): cited by Ellman, P. and Cudkowicz, L. (1954).
2. A.: Nontuberculous Diseases of the Chest;von Notthafft,1954
3. “Cystic and Compact Pulmonary Sclerosis in Progressive Scleroderma,”;Getzowa;Arch. Path.,1945
4. “Pulmonary Manifestations in the Diffuse Collagen Diseases,”;Ellman;Thorax,1954
5. “The Pulmonary Manifestations of Scleroderma: An Anatomic-physiological Correlation,”;Spain;Ann. Intern. Med.,1950