Yujiro Kawamata, Yoshinori Namikawa. Logarithmic Deformations of Normal Crossing Varieties and Smoothing of Degenerate Calabi-Yau Varieties. Inventiones mathematicae. 1994.
Yujiro Kawamata, Yoshinori Namikawa. Logarithmic Deformations of Normal Crossing Varieties and Smoothing of Degenerate Calabi-Yau Varieties. Inventiones mathematicae. 1994.