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↑ Cérémonie, H. L. N.; Debellé, F. D. R.; Fernandez, M. P. (1999). "Structural and functional comparison of Frankiaroot hair deforming factor and rhizobia Nod factor". Canadian Journal of Botany. 77 (9): 1293. doi:10.1139/b99-060.
Valla, G.; Capellano, A.; Hugueney, R.; Moiroud, A. (1989). "Penicillium nodositatum Valla, a new species inducing myconodules on Alnus roots". Plant and Soil. 114: 142–146. doi:10.1007/BF02203093.
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Cérémonie, H. L. N.; Debellé, F. D. R.; Fernandez, M. P. (1999). "Structural and functional comparison of Frankiaroot hair deforming factor and rhizobia Nod factor". Canadian Journal of Botany. 77 (9): 1293. doi:10.1139/b99-060.
Sequerra, J.; Marmeisse, R.; Valla, G.; Normand, P.; Capellano, A.; Moiroud, A. (1997). "Taxonomic position and intraspecific variability of the nodule forming Penicillium nodositatum inferred from RFLP analysis of the ribosomal intergenic spacer and Random Amplified Polymorphic DNA". Mycological Research. 101 (4): 465. doi:10.1017/S0953756296002857.
Charles W. Bacon, James White (2000). Microbial Endophytes. CRC Press. ISBN978-0-8247-8831-5.