@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040254, author = {Minagawa, Tatsuhiro}, issue = {2}, journal = {Journal of mathematical sciences, the University of Tokyo}, month = {}, note = {application/pdf}, pages = {397--414}, title = {Deformations of $\Bbb Q$-Calabi-Yau 3-Folds and $\Bbb Q$-Fano 3-Folds of Fano Index 1}, volume = {6}, year = {1999} }