Buczko U., van Laak M., Eichler-Löbermann B., Gans W., Merbach I., Panten K., Peiter E., Reitz T., Spiegel H., von Tucher S. (2018).
Re-evaluation of the yield response to phosphorus fertilization based on meta-analyses of long-term field experiments. Ambio, 47(S1),
50-61. doi:10.1007/s13280-017-0971-1