@article{1250129001,
author = {Chern, S.S. and Terng, C.L.},
title = {An analogue of B\"acklund's theorem in affine geometry},
journal = {Rocky Mountain J. Math.},
volume = {10},
number = {4},
year = {1980},
pages = { 105-124},
language = {en},
url = {http://dml.mathdoc.fr/item/1250129001}
}
Chern, S.S.; Terng, C.L. An analogue of Bäcklund's theorem in affine geometry. Rocky Mountain J. Math., Tome 10 (1980) no. 4, pp. 105-124. http://gdmltest.u-ga.fr/item/1250129001/