T. L. Righetti, Sandrock, D. R., Strik, B. C., Vasconcelos, C., Banados, P., Ortega, S., Moreno, Y., and Guihong, B.,
“Analysis of ratio-based responses.”,
. Amer. Soc. Hort. Sci., vol. 132, pp. 3-13, 2007.
T. L. Righetti, Sandrock, D. R., Strik, B. C., and Azarenko, A. A.,
“Appropriate analysis and interpretation approaches to determine fertilizer-derived nitrogen in plant tissues.”,
J. Amer. Soc. Hort. Sci., vol. 132, pp. 429-436, 2007.