@article{VMUMM_1993_4_a1,
     author = {G. V. Kozlov and V. A. Lyubishkin},
     title = {Regularized traces of singular differential operators},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {6--11},
     year = {1993},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1993_4_a1/}
}