The projectivity of the moduli space of stable curves, II: The stacks $M_{g,n}$

Knudsen, F. F. (1983). The projectivity of the moduli space of stable curves, II: The stacks $M_{g,n}$. MATHEMATICA SCANDINAVICA, 52, 161–199. https://doi.org/10.7146/math.scand.a-12001