@article{GMJ_1998__5_5_48266,
     author = {Khimshiashvili, G.},
     title = {Homotopy classes of elliptic transmission problems over -algebras.},
     journal = {Georgian mathematical journal},
     pages = {453--468},
     year = {1998},
     volume = {5},
     number = {5},
     zbl = {0923.46048},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_1998__5_5_48266/}
}