Uusitalo, R., Ylivainio, K., Hyväluoma, J., Rasa, K., Kaseva, J., Nylund, P., Pietola, L. and Turtola, E. (2012) “The effects of gypsum on the transfer of phosphorus and other nutrients through clay soil monoliths”, Agricultural and Food Science, 21(3), pp. 260-278. doi: 10.23986/afsci.4855.