SILVA, C. M. M. DE S.; OLIVEIRA, M. C. DE; ALBUQUERQUE, S. G. DE. Evaluation of the productivity of thirteen buffel grass cultivars in the semi-arid region of Pernambuco, Brazil. Pesquisa Agropecuaria Brasileira, v. 22, n. 5, p. 513–520, 17 Apr.2014.