@article{GDZPPN002230542,
title = {On a Theorem of Chern and Terng on Affine Surfaces.},
journal = {Manuscripta mathematica},
volume = {67},
year = {1990},
pages = {303-308},
zbl = {0699.53008},
url = {http://dml.mathdoc.fr/item/GDZPPN002230542}
}
Nomizu, Katsumi; Sasaki, Takeshi. On a Theorem of Chern and Terng on Affine Surfaces.. Manuscripta mathematica, Tome 67 (1990) pp. 303-308. http://gdmltest.u-ga.fr/item/GDZPPN002230542/