1. (1880) Der Bronchialbaum der Säugetiere und des Menschen. W. Engleman, Leipzig.
2. The Evolution of Bronchial Casts
3. (1978) Quantitative morphology and structure: Functional correlations in the lung. In: The Lung: Structure, Function and Disease. IAP Monograph No. 19. ed. Williams and Wilkins, Baltimore, pp. 151-159.
4. Morphology of the bronchial tree in man.