Authors: Cofie, P Koolen, AJ

Citation: P. Cofie et Aj. Koolen, Test speed and other factors affecting the measurements of tree root properties used in soil reinforcement models, SOIL TILL R, 63(1-2), 2001, pp. 51-56

Authors: Aluko, OB Koolen, AJ

Citation: Ob. Aluko et Aj. Koolen, Dynamics and characteristics of pore space changes during the crumbling ondrying of structured agricultural soils, SOIL TILL R, 58(1-2), 2001, pp. 45-54

Authors: Cofie, P Koolen, AJ Perdok, UD

Citation: P. Cofie et al., Measurement of stress-strain relationship of beech roots and calculation of the reinforcement effect of tree roots in soil-wheel systems, SOIL TILL R, 57(1-2), 2000, pp. 1-12

Authors: Aluko, OB Koolen, AJ

Citation: Ob. Aluko et Aj. Koolen, The essential mechanics of capillary crumbling of structured agricultural soils, SOIL TILL R, 55(3-4), 2000, pp. 117-126