Echer, E., Schuch, N. J., Makita, K., & Okano, S. (2004). Observations of broadband solar UV-A irradiance at Santa Maria, Brazil (29°S, 53° W)2004-01-01. Geofísica Internacional, 43(1), 53–59. https://doi.org/10.22201/igeof.00167169p.2004.43.1.214