@article{RM_2003_58_1_a7,
     author = {S. A. Igonin},
     title = {Horizontal cohomology with coefficients and non-linear zero-curvature representations},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {180--182},
     year = {2003},
     volume = {58},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2003_58_1_a7/}
}