Spacelike hypersurfaces of constant higher order mean curvature in generalized Robertson-Walker spacetimes

• Autores: Luis José Alías Linares , Debora Impera, Marco Rigoli
• Localización: Mathematical proceedings of the Cambridge Philosophical Society, ISSN 0305-0041, Vol. 152, Nº 2, 2012 , págs. 365-383