Steinfurth K., Börjesson G., Denoroy P., Eichler-Löbermann B., Gans W., Heyn J., Hirte J., Huyghebaert B., Jouany C., Koch D., Merbach I., Mokry M., Mollier A., Morel C., Panten K., Peiter E., Poulton P. R. , Reitz T., Rubaek G. H., Spiegel H., van Laak M., von Tucher S., Buzcko U.

Thresholds of target phosphorus fertility classes in European fertilizer recommendations in relation to critical soil test phosphorus values derived from the analysis of 55 European long-term field experiments.