Dalrymple, B. P., Swadling, Y., Layton, I., Gobius, K. S., & Xue, G. (1999). Distribution and Evolution of the Xylanase Genes xynA and xynB and Their Homologues in Strains of Butyrivibrio fibrisolvens. American Society for Microbiology.

Dalrymple, Brian P., Yolande Swadling, Ingrid Layton, Kari S. Gobius, و Gang-Ping Xue. Distribution and Evolution of the Xylanase Genes XynA and XynB and Their Homologues in Strains of Butyrivibrio Fibrisolvens. American Society for Microbiology, 1999.

Dalrymple, Brian P., et al. Distribution and Evolution of the Xylanase Genes XynA and XynB and Their Homologues in Strains of Butyrivibrio Fibrisolvens. American Society for Microbiology, 1999.