@article{IM_1984__75_143105,
     author = {J. Harris},
     title = {On the {Kodaira} dimension of the moduli space of curves, {II.} {The} even-genus case.},
     journal = {Inventiones mathematicae},
     pages = {437--466},
     publisher = {mathdoc},
     volume = {75},
     year = {1984},
     zbl = {0542.14014},
     url = {http://geodesic.mathdoc.fr/item/IM_1984__75_143105/}
}