Liebert, James; Cutri, Roc M.; Nelson, Brant; Beichman, Charles A.; Dahn, Conard C.; Monet, David G. et al. (1999-07-10). “Dwarfs Cooler than M: the Definition
Temperature Scale for Red Dwarfs, by S. K. Leggett, F. Allard, Graham Berriman, Conard C. Dahn, and Peter H. Hauschildt, Astrophysical Journal Supplement 104 (May