Romero Ariza, M; Larsen, T. O.; Petersen, B. O.; Duus, J.O.; Christophersen, C; Barrero, A. F. (2001). "A novel alkaloid serantrypinone and the spiro azaphilone daldinin D from Penicillium thymicola". Journal of Natural Products. 64 (12): 1590–2. CiteSeerX10.1.1.378.2683. doi:10.1021/np0101550. PMID11754624.
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Romero Ariza, M; Larsen, T. O.; Petersen, B. O.; Duus, J.O.; Christophersen, C; Barrero, A. F. (2001). "A novel alkaloid serantrypinone and the spiro azaphilone daldinin D from Penicillium thymicola". Journal of Natural Products. 64 (12): 1590–2. CiteSeerX10.1.1.378.2683. doi:10.1021/np0101550. PMID11754624.
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Romero Ariza, M; Larsen, T. O.; Petersen, B. O.; Duus, J.O.; Christophersen, C; Barrero, A. F. (2001). "A novel alkaloid serantrypinone and the spiro azaphilone daldinin D from Penicillium thymicola". Journal of Natural Products. 64 (12): 1590–2. CiteSeerX10.1.1.378.2683. doi:10.1021/np0101550. PMID11754624.