1. Spencer H (1968) Pathology of the lung, 2nd edn. Pergamon, Oxford, p. 73
2. Dische MR, Teixeira ML, Winchester PH, Engle MA (1974) Horseshoe lung associated with a variant of the “scimitar” syndrome. Br Heart J 36: 61
3. Cipriano Sweeney LJ, Hutchins GM, Rosenquist GC (1975) Horseshoe lung in an infant with recurrent pulmonary infections. Am J Dis Child 129: 1343–1345
4. Purcaro A, Caruso L, Campani N, Inglese L (1976) Polmane a ferro di cavallo malposizione cardiaca. Ed. Anomalie vascoliari polmonari: una sindrome caratteristica. G Ital Cardiol 6: 312–316
5. Orzan F, Angelin P, Oglietti J, Leachman RD, Cooley DA (1977) Horseshoe lung: report of two cases. Am Heart J 93: 501–505