1. Amgwerd, R.: Die sogenannte bronchopulmonale Lungensequestration. Helv. chir. Acta 29, 32 (1962).
2. Bolla, A., Zanotelli, F.: Considération sur le diverticule bronchique simple et associé à d'autres malformations. Bronches 17, 125?132 (1967).
3. Borsanyi, St.: Agenesis of the lung. Report of a case. Laryngoscope (St. Louis) 70, 187?193 (1960); ref. Zbl. Hals- Nas.- u. Ohrenheilk. 68, 28 (1960).
4. Castella Escabros, A.: Malformaciones bronquiales y bronquiectasias. Med. clip. (Barcelona) 27, 307?318 (1956); ref. Zbl. Hals-, Nas.- u. Ohrenheilk. 58, 257?258 (1957).
5. Ferguson, Ch. F., Flake, C. G.: Tracheographic and bronchographic studies as aids in the diagnosis of congenital malformations of the tracheobronchial tree and aortic arch in infants and children. Ann. Otol. (St. Louis) 63, 1056?1081 (1954).