@article{GDZPPN002231549,
title = {Symmetric Theta-Structures.},
journal = {Manuscripta mathematica},
volume = {70},
year = {1991},
pages = {67-92},
zbl = {0737.14013},
url = {http://dml.mathdoc.fr/item/GDZPPN002231549}
}
Lange, H.; Birkenhake, Ch. Symmetric Theta-Structures.. Manuscripta mathematica, Tome 70 (1991) pp. 67-92. http://gdmltest.u-ga.fr/item/GDZPPN002231549/