@article{SIGMA_2011_7_a88,
     author = {Mike C. Hay},
     title = {A {Completeness} {Study} on {Certain} $2\times2$ {Lax} {Pairs} {Including} {Zero} {Terms}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2011},
     volume = {7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2011_7_a88/}
}