Caswell, E. P., MacGuidwin, A. E., Milne, K., Nelsen, C. E., Thomason, I. J., & Bird, G. W. (1986). A Simulation Model of Heterodera schachtii Infecting Beta vulgaris. Society of Nematologists.

Caswell, E. P., A. E. MacGuidwin, K. Milne, C. E. Nelsen, I. J. Thomason, and G. W. Bird. A Simulation Model of Heterodera Schachtii Infecting Beta Vulgaris. Society of Nematologists, 1986.

Caswell, E. P., et al. A Simulation Model of Heterodera Schachtii Infecting Beta Vulgaris. Society of Nematologists, 1986.