The Chandra Local Volume Survey: The X-Ray Point-source Population of NGC 404DOI: info:10.1088/0004-637X/763/2/128v. 763128
Binder, B., Williams, B. F., Eracleous, M., Gaetz, T. J., Kong, A. K. H., Skillman, E. D., and Weisz, D. R. 2013. "The Chandra Local Volume Survey: The X-Ray Point-source Population of NGC 404." The Astrophysical Journal, 763 128. https://doi.org/10.1088/0004-637X/763/2/128.