[1]
V. G. Ribeiro, M. Pasqual, J. D. Ramos, A. F. de Oliveira Junior, and G. R. Carvalho, “Effects of pH and agar on <i>in vitro</i> embryo culture of orange cv. Pêra”, PAB, vol. 32, no. 11, pp. 1147–1152, Nov. 1997.