TY - JOUR AU - Oleksandr Chvartatskyi AU - Yuriy Sydorenko TI - Darboux Transformations for $(2+1)$-Dimensional Extensions of the KP Hierarchy JO - Symmetry, integrability and geometry: methods and applications PY - 2015 VL - 11 UR - http://geodesic.mathdoc.fr/item/SIGMA_2015_11_a27/ LA - en ID - SIGMA_2015_11_a27 ER -