Hofmann F, Herrmann A, Habermann E, von Eichel-Streiber C (June 1995). "Sequencing and analysis of the gene encoding the alpha-toxin of Clostridium novyi proves its homology to toxins A and B of Clostridium difficile". Molecular & General Genetics. 247 (6): 670–9. doi:10.1007/BF00290398. PMID7616958. S2CID10460632.
Hofmann F, Herrmann A, Habermann E, von Eichel-Streiber C (June 1995). "Sequencing and analysis of the gene encoding the alpha-toxin of Clostridium novyi proves its homology to toxins A and B of Clostridium difficile". Molecular & General Genetics. 247 (6): 670–9. doi:10.1007/BF00290398. PMID7616958. S2CID10460632.
Hofmann F, Herrmann A, Habermann E, von Eichel-Streiber C (June 1995). "Sequencing and analysis of the gene encoding the alpha-toxin of Clostridium novyi proves its homology to toxins A and B of Clostridium difficile". Molecular & General Genetics. 247 (6): 670–9. doi:10.1007/BF00290398. PMID7616958. S2CID10460632.