Coultas, C. L.; Post, T. J.; Jones, J. B.; Hsieh, Y. P. . (1996). Use of velvet bean to improve soil fertility and weed control in corn production in northern belize
<sup>1</sup>. Communications in Soil Science and Plant Analysis, 27(9-10), 2171–2196.
doi:10.1080/00103629609369696
