TY - JOUR AU - Mike C. Hay TI - A Completeness Study on Certain $2\times2$ Lax Pairs Including Zero Terms JO - Symmetry, integrability and geometry: methods and applications PY - 2011 VL - 7 UR - http://geodesic.mathdoc.fr/item/SIGMA_2011_7_a88/ LA - en ID - SIGMA_2011_7_a88 ER -