Araujo, A.G. de, Pasqual, M., Rodrigues, F.A., Carvalho, J.G. de and Zarraga, D.Z.A. 2009. <b>Nitrogen sources in the <em>in vitro</em> development of the <em>Cattleya loddigesii</em> ‘Tipo’ orchid</b&gt; - DOI: 10.4025/actascibiolsci.v31i1.309. Acta Scientiarum. Biological Sciences. 31, 1 (Apr. 2009), 35-39. DOI:https://doi.org/10.4025/actascibiolsci.v31i1.309.