@article{VMUMM_1985_1_a20,
     author = {F. Sharipov},
     title = {Independence of the spectrum of an elliptic operator over a $C^*$-algebra},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {87--89},
     publisher = {mathdoc},
     number = {1},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1985_1_a20/}
}