@article{TM_2007_258_a1,
     author = {V. I. Arnol'd},
     title = {Topological {Classification} of {Trigonometric} {Polynomials} {Related} to the {Affine} {Coxeter} {Group~}$\widetilde A_2$},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {7--16},
     publisher = {mathdoc},
     volume = {258},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2007_258_a1/}
}