%0 Journal Article %A Looijenga, Eduard %T A period mapping for certain semi-universal deformations %J Compositio Mathematica %D 1975 %P 299-316 %V 30 %N 3 %I Noordhoff International Publishing %U http://www.numdam.org/item/CM_1975__30_3_299_0/ %G en %F CM_1975__30_3_299_0