@article{01433460,
title = {Symmetry group of \c Ti\c teica surfaces PDE.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {4},
year = {1999},
pages = {123-140},
zbl = {0958.58032},
language = {en},
url = {http://dml.mathdoc.fr/item/01433460}
}
Udrişte, C.; Bîlă, N. Symmetry group of Ţiţeica surfaces PDE.. Balkan Journal of Geometry and its Applications (BJGA), Tome 4 (1999) pp. 123-140. http://gdmltest.u-ga.fr/item/01433460/