Hunting for brown dwarfs in the globular cluster M4: second epoch HST NIR observationsDOI: info:10.1093/mnras/stz996v. 4862254–2264
Dieball, A., Bedin, L. R., Knigge, C., Geffert, M., Rich, R. M., Dotter, Aaron, Richer, H., and Zurek, D. 2019. "Hunting for brown dwarfs in the globular cluster M4: second epoch HST NIR observations." Monthly Notices of the Royal Astronomical Society, 486 2254–2264. https://doi.org/10.1093/mnras/stz996.