I. . Godfrey, G. . Avard, J. P. S. . Brenes, M. M. . Cruz, and K. . Meghraoui, “Using Sniffer4D and SnifferV portable gas detectors for UAS monitoring of degassing at the Turrialba Volcano Costa Rica ”, auav, vol. 3, no. 1, pp. 54–90, Jun. 2023.