Ju, X.T., Kou, C.L., Christie, P., et al. (2007) Changes in the Soil Environment from Excessive Application of Fertilizers and Manures to Two Contrasting Intensive Cropping Systems on the North China Plain. Environmental Pollution, 145,497-506. http://dx.doi.org/10.1016/j.envpol.2006.04.017

has been cited by the following article: