P. Srivastava, S. Marker, P. Pandey and D. K. Tiwari
Asian Journal of Plant Sciences 10 ( 3 ): 190 - 201 , 2011
S. M. Sanders, P. Srivastava, Y. Feng, J. H. Dane, J. Basile and M. O. Barnett
Journal of Environmental Quality 37 ( 4 ): 1510 - 1518 , 2008