@article{AIHPA_1984__41_4_385_0,
     author = {Anderson, James L. and Heyl, William J.},
     title = {Comparison of exact and approximate causal solutions of a model curved-space wave equation},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {385--398},
     publisher = {Gauthier-Villars},
     volume = {41},
     number = {4},
     year = {1984},
     mrnumber = {777913},
     zbl = {0632.35032},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1984__41_4_385_0/}
}