1. Weibel ER (1997) Design and morphometry of the pulmonary gas exchanger. In: Cristal G et al (eds) The Lung. Lippincott-Raven Publishers, Philadelphia
2. Burri PH (1997) Postnatal Development and growth. In: Crystal RG, West BG, Weibel ER, Barnes PG (eds) The lung. Lippincott-Raven, Philadelphia, pp 1013–1026
3. Langston C, Kida K, Reed M, Thurlbeck WM (1984) Human lung growth in late gestational and in the neonate. Am Rev Res Dis 129: 607–613
4. Moore KL, Persaud TVN (1993) The Developing Human, 5th edn. WB Saunders, Philadelphia
5. Alescio T, Cassini A (1962) Induction in vitro of tracheal buds by pulmonary mesenchyme grafted on tracheal epithelium. J Exp Zool 150: 83–94