@article{GDZPPN002328267,
title = {Tsuchihashi's Cusp Singularities and Automorphisms of Hilbert Modular Variety Cusps.},
journal = {Mathematische Annalen},
volume = {275},
year = {1986},
pages = {691-698},
zbl = {0576.14037},
url = {http://dml.mathdoc.fr/item/GDZPPN002328267}
}
Sankaran, G. K. Tsuchihashi's Cusp Singularities and Automorphisms of Hilbert Modular Variety Cusps.. Mathematische Annalen, Tome 275 (1986) pp. 691-698. http://gdmltest.u-ga.fr/item/GDZPPN002328267/