Wen , XinSong , HaimingZhang , Rui and Li , Yutian. (2023). Primal-Dual Active-Set Method for the Valuation of American Exchange Options.
            <i>East Asian Journal on Applied Mathematics</i>. <i>13</i> (4).
            858-885.
         doi:10.4208/eajam.2022-227.221222