%0 Journal Article %A Celletti, Alessandra %A Falcolini, Corrado %A Porzio, Anna %T Rigorous numerical stability estimates for the existence of KAM tori in a forced pendulum %J Annales de l'I.H.P. Physique théorique %D 1987 %P 85-111 %V 47 %N 1 %I Gauthier-Villars %U http://archive.numdam.org/item/AIHPA_1987__47_1_85_0/ %G en %F AIHPA_1987__47_1_85_0