@article{IVM_2002_11_a9,
     author = {G. Yu. Vinogradova and V. M. Deundyak},
     title = {On the index and homotopic classification of families of singular operators with a~dihedral shift group and $PC$-coefficients},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {71--74},
     publisher = {mathdoc},
     number = {11},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2002_11_a9/}
}