The Chandra Local Volume Survey. I. The X-Ray Point Source Populations of NGC 55, NGC 2403, and NGC 4214DOI: info:10.1088/0004-6256/150/3/94v. 15094
Binder, B., Williams, B. F., Eracleous, M., Plucinsky, Paul P., Gaetz, T. J., Anderson, S. F., Skillman, E. D., Dalcanton, J. J., Kong, A. K. H., and Weisz, D. R. 2015. "The Chandra Local Volume Survey. I. The X-Ray Point Source Populations of NGC 55, NGC 2403, and NGC 4214." The Astronomical Journal, 150 94. https://doi.org/10.1088/0004-6256/150/3/94.