A. P. Ruschel, D. P. de S. Britto, and L. F. de Carvalho, “Effect of boron, molybdenum and zinc when applied as coatings on seeds of soybeans (<i>Glycine max</i> (L.) Merril) with respect to symbiotic nitrogen fixation”, PAB, vol. 4, no. 1, pp. 29–37, Apr. 2014.