“The Luminosity Function of the Stars Embedded in the Chamaeleon I and in the Rho Ophiuchi Molecular Clouds”. Revista Mexicana De Astronomía Y Astrofísica, vol. 21, no. 1, Jan. 1990, p. 356, https://astronomia.unam.mx/journals/rmxaa/article/view/1990rmxaa. 21. 356g.