@article{SLDB_1956-1957__26__A5_0,
     author = {Costa de Beauregard, O.},
     title = {Coefficient de conversion du temps propre d'une horloge terrestre au temps astronomique de {Schwarzschild} \`a l'approximation de 10-12},
     journal = {S\'eminaire L. de Broglie. Th\'eories physiques},
     note = {talk:5},
     pages = {1--7},
     publisher = {Secr\'etariat math\'ematique},
     volume = {26},
     year = {1956-1957},
     zbl = {0078.19408},
     language = {fr},
     url = {http://www.numdam.org/item/SLDB_1956-1957__26__A5_0/}
}