A. Guckert et Rkm. Hay, The overwintering, spring growth, and yield in mixed species swards, of white clover in Europe - Preface, ANN BOTANY, 88, 2001, pp. 667-668
Analysis, synthesis and modelling of the results of a 10 year European Unio
n Cooperative Organisation of Science and Technology (COST814) programme of
research at 12 sites in northern and upland Europe (1992-2000).