Spasova, M., Grudeva-Popova, J., Genev, E., Lazarova, A., Stoyanova, A., & Mumdjiev, I. (2006). Pseudomembranous necrotizing tracheobronchitis caused by Aspergillus spp - contribution of one case with acute myeloid leukemia. Folia Medica, 48 (3-4), 93-97.