hal-00693599 title_s An analysis of a least squares regression method for American option pricing auteur Emmanuelle Clement, D Lamberton, P Protter journal Finance and Stochastics volume 6 numero 4 pages 449--471 doi 10.1007/s007800200071 fichier_autre https://api.istex.fr/ark:/67375/VQC-Q3L53KXR-P/fulltext.pdf?sid=hal origine_autre istex annee 2002