Eriksson, O.E. & K. Winka. Supraordinal taxa of Ascomycota. Myconet. 1997, 1: 1–16.
Lutzoni, F.; et al. Assembling the fungal tree of life: progress, classification, and evolution of subcellular traits. Amer. J. Bot. 2004, 91: 1446–1480. doi:10.3732/ajb.91.10.1446.
4. H. T. Lumbsch, S. M. Huhndorf, Outline of Ascomycota, Myconet, 13(2007), 1 - 58.