@article{GDZPPN002090848,
title = {Variation of Hodge Structure: The Singularities of the Period Mapping.},
journal = {Inventiones mathematicae},
volume = {20},
year = {1973},
pages = {211-320},
zbl = {0278.14003},
url = {http://dml.mathdoc.fr/item/GDZPPN002090848}
}
Schmid, Wilfried. Variation of Hodge Structure: The Singularities of the Period Mapping.. Inventiones mathematicae, Tome 20 (1973) pp. 211-320. http://gdmltest.u-ga.fr/item/GDZPPN002090848/