%0 Journal Article %A Bakalov, B. %A Horozov, E. %A Yakimov, M. %T Highest Weight Modules of W1+∞, Darboux Transformations and the Bispectral Problem %J Serdica Mathematical Journal %D 1997 %P 95-112 %V 23 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SMJ2_1997_23_2_a1/ %G en %F SMJ2_1997_23_2_a1