Kozlovskiĭ, A. G.; Zhelifonova, V. P.; Antipova, T. V.; Adanin, V. M.; Novikova, N. D.; Deshevaia, E. A.; Schlegel, B.; Dahse, H. M.; Gollmick, F. A.; Grafe, U. (2004). "Penicillium expansum, a resident fungal strain of the orbital complex Mir, producing xanthocillin X and questiomycin A". Prikladnaia Biokhimiia I Mikrobiologiia. 40 (3): 344–9. PMID15283339.