Hutchens, Zackary L., Kannappan, Sheila J., Berlind, Andreas A., Asad, Mehnaaz, Eckert, Kathleen D., Stark, David V., Carr, Derrick S., Castelloe, Ella R., Baker, Andrew J. et al (2023) The RESOLVE and ECO Gas in Galaxy Groups Initiative: The Group Finder and the Group H i –Halo Mass Relation. Astrophysical Journal, 956 (1). ISSN 0004-637X