@article{01621372, title = {On local invariants of totally real surfaces.}, journal = {Georgian Mathematical Journal}, volume = {8}, year = {2001}, pages = {97-109}, zbl = {0987.32013}, language = {en}, url = {http://dml.mathdoc.fr/item/01621372} }
Khimshiashvili, G. On local invariants of totally real surfaces.. Georgian Mathematical Journal, Tome 8 (2001) pp. 97-109. http://gdmltest.u-ga.fr/item/01621372/