Ferguson, J. C., Tarara, J. M., Mills, L. J., Grove, G. G., & Keller, M. (2011). Dynamic thermal time model of cold hardiness for dormant grapevine buds. Oxford University Press.

Ferguson, John C., Julie M. Tarara, Lynn J. Mills, Gary G. Grove, and Markus Keller. Dynamic Thermal Time Model of Cold Hardiness for Dormant Grapevine Buds. Oxford University Press, 2011.

Ferguson, John C., et al. Dynamic Thermal Time Model of Cold Hardiness for Dormant Grapevine Buds. Oxford University Press, 2011.