Quantum mechanics and coherent states on the anti-de Sitter spacetime and their Poincaré contraction Stephan De Bièvre, Amine M. El Gradechi (1992) Annales de l'I.H.P. Physique théorique
Quantum vacuum polarization at the Black-Hole horizon Alain Bachelot (1997) Annales de l'I.H.P. Physique théorique