I. R. Johnson

A theoretical analysis of grass growth under grazing

Anthony J. Parsons, A. Parsons, I. Johnson, 1985 .

Modelling daily net canopy photosynthesis and its adaptation to irradiance and atmospheric CO2 concentration

Susan J. Riha, Daniel S. Wilks, D. Wilks, 1996 .

Use of a model to optimize the interaction between frequency and severity of intermittent defoliation and to provide a fundamental comparison of the continuous and intermittent defoliation of grass

Anthony J. Parsons, A. Parsons, I. Johnson, 1988 .