@article{1102720734,
author = {Beem, John K. and Parker, Phillip E.},
title = {Klein-Gordon solvability and the geometry of geodesics.},
journal = {Pacific J. Math.},
volume = {109},
number = {2},
year = {1983},
pages = { 1-14},
language = {en},
url = {http://dml.mathdoc.fr/item/1102720734}
}
Beem, John K.; Parker, Phillip E. Klein-Gordon solvability and the geometry of geodesics.. Pacific J. Math., Tome 109 (1983) no. 2, pp. 1-14. http://gdmltest.u-ga.fr/item/1102720734/