*{{Citation | author=Cuvaj, Camillo | year=1969 | title= Henri Poincaré's Mathematical Contributions to Relativity and the Poincaré Stresses | journal=American Journal of Physics |pages=1102–1113 |volume=36 | issue=12|doi=10.1119/1.1974373|bibcode = 1968AmJPh..36.1102C }} | *{{Citation | author=Cuvaj, Camillo | year=1969 | title= Henri Poincaré's Mathematical Contributions to Relativity and the Poincaré Stresses | journal=American Journal of Physics |pages=1102–1113 |volume=36 | issue=12|doi=10.1119/1.1974373|bibcode = 1968AmJPh..36.1102C }} |