János Kollár, “Flops”, Nagoya Mathematical Journal, 113 (1989), 15
Iliev A., “On Threefolds with Numerically Effective Canonical Class of Numerical Dimension .1.”, Vestn. Mosk. Univ. Seriya 1 Mat. Mekhanika, 1988, no. 1, 3–6
Yujiro Kawamata, Lecture Notes in Mathematics, 1194, Complex Analysis and Algebraic Geometry, 1986, 41
Robert Friedman, Francesco Scattone, “Type III degenerations of K3 surfaces”, Invent Math, 83:1 (1986), 1
Bruce Crauder, “Degenerations of rational surfaces with trivial monodromy”, Duke Math. J., 53:2 (1986)
Shihoko Ishii, “On isolated gorenstein singularities”, Math Ann, 270:4 (1985), 541
Shigeyuki Kondo, “Type II degenerations of K3 surfaces”, Nagoya Mathematical Journal, 99 (1985), 11
Bruce Crauder, “Two reduction theorems for threefold birational morphisms”, Math. Ann., 269:1 (1984), 13
В. В. Никулин, “Инволюции целочисленных квадратичных форм и их приложения к вещественной алгебраической геометрии”, Изв. АН СССР. Сер. матем., 47:1 (1983), 109–188 ; V. V. Nikulin, “Involutions of integral quadratic forms and their applications to real algebraic geometry”, Math. USSR-Izv., 22:1 (1984), 99–172
Kenii Nishiguchi, “Kodaira dimension is not necessarily lower semi-continuous under degenerations of surfaces”, Math. Ann., 263:3 (1983), 377