M. H. Sasamori, D. Endres Jr., M. D. Barbosa, J. L. Schmitt, e A. Droste, “Active monitoring of urban air with a simple short-term Tradescantia pallida var. purpurea bioassay under different temperature conditions”, R.bras.Bioci., vol. 10, nº 3, p. 298, out. 2012.