@article{03851944, title = {A scalar geodesic deviation equation and a phase theorem.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {6}, year = {1983}, pages = {795-802}, doi = {10.1155/S0161171283000678}, zbl = {0536.53033}, language = {en}, url = {http://dml.mathdoc.fr/item/03851944} }
Choudhury, P.; Dolan, P.; Swaminarayan, N.S. A scalar geodesic deviation equation and a phase theorem.. International Journal of Mathematics and Mathematical Sciences, Tome 6 (1983) pp. 795-802. doi : 10.1155/S0161171283000678. http://gdmltest.u-ga.fr/item/03851944/