H. B. S. Sobrinho, J. M. Luna, R. D. Rufino, A. L. F. Porto, and L. A. Sarubbo, “Assessment of toxicity of a biosurfactant from Candida sphaerica UCP 0995 cultivated with industrial residues in a bioreactor”, Electron. J. Biotechnol., vol. 16, no. 4, Jul. 2013.