1. Andér, L.: Idiopathic interstitial fibrosis of the lungs. I. Prognosis as indicated by radiological findings. Acta med. Scand.178/1 47 (1965)
2. Baglio, C. M., Michel, R. D., Hunter, W. C.: Primary interstitial pulmonary fibrosis: Diffuse and circumscribed forms. J. thor. cardiovasc. Surg.39, 695–714 (1960)
3. Bates, D. V., Macklem, P. T., Christie, R. V.: Respiratory function in disease. (Saunders, Philadelphia-London-Toronto 1971)
4. Burrows, B., Niden, A. H., Barclay, W. R., Kasik, J. E.: Chronic obstuctive lung disease. II. Relationship of clinical and physiologic findings to the severity of airway obstruction. Amer. Rev. resp. Dis.91, 665 (1965)
5. Cegla, U. H.,: Zur therapeutischen Beeinflußbarkeit des Kollagengehaltes der Lunge bei Lungenfibrosen. In: Hamm, H.: Interstitielle Lungenerkrankungen und Lungenfibrosen. (Thieme, Stuttgart 1975) (im Druck)