Bonnell, R., McGrath, D., Webb, R., & Marshall, H.-P. (2021). SnowEx20 Grand Mesa IOP CSU 1GHz GPR, Version 1 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/S5EGFLCIAB18 Date Accessed: 2026-01-18
Bonnell, Randall, Daniel McGrath, Ryan Webb, and Hans-Peter Marshall. “SnowEx20 Grand Mesa IOP CSU 1GHz GPR, Version 1.” NASA National Snow and Ice Data Center Distributed Active Archive Center, 2021. doi:10.5067/S5EGFLCIAB18. Date Accessed: 2026-01-18
Bonnell, Randall, et al. SnowEx20 Grand Mesa IOP CSU 1GHz GPR, Version 1. NASA National Snow and Ice Data Center Distributed Active Archive Center, 2021, doi:10.5067/S5EGFLCIAB18. Date Accessed: 2026-01-18