Banbula, A., Bugno, M., Goldstein, J., Yen, J., Nelson, D., Travis, J., & Potempa, J. (2000). Emerging Family of Proline-Specific Peptidases of Porphyromonas gingivalis: Purification and Characterization of Serine Dipeptidyl Peptidase, a Structural and Functional Homologue of Mammalian Prolyl Dipeptidyl Peptidase IV. American Society for Microbiology.

Banbula, Agnieszka, Marcin Bugno, Jason Goldstein, Jane Yen, Daniel Nelson, James Travis, et Jan Potempa. Emerging Family of Proline-Specific Peptidases of Porphyromonas Gingivalis: Purification and Characterization of Serine Dipeptidyl Peptidase, a Structural and Functional Homologue of Mammalian Prolyl Dipeptidyl Peptidase IV. American Society for Microbiology, 2000.

Banbula, Agnieszka, et al. Emerging Family of Proline-Specific Peptidases of Porphyromonas Gingivalis: Purification and Characterization of Serine Dipeptidyl Peptidase, a Structural and Functional Homologue of Mammalian Prolyl Dipeptidyl Peptidase IV. American Society for Microbiology, 2000.