Cohomologically insignificant degenerations of algebraic varieties Igor Dolgachev — 1980 Compositio Mathematica
K3 surfaces with a symplectic automorphism of order 11 Igor Dolgachev; JongHae Keum — 2009 Journal of the European Mathematical Society
On the Link Space of a Gorenstein Quasihomogeneous Surface Singularity. Igor V. Dolgachev — 1983 Mathematische Annalen
Variation of geometric invariant theory quotients Igor V. Dolgachev; Yi Hu — 1998 Publications Mathématiques de l'IHÉS