Brito, Elcia Margareth Souza, et al. “Using Tillandsia Usneoides As Biomonitor for Toxic Metals in the Air of Guanajuato’s Tunnel Network ”. Orbital: The Electronic Journal of Chemistry, vol. 16, no. 3, Sept. 2024, pp. 161-8, https://doi.org/10.17807/orbital.v16i3.19766.