@article{TRSPY_1992_193_a26,
     author = {A. S. Mishchenko and V. Ya. Pidstrigach},
     title = {The cohomological trace of differential operators with parameters},
     journal = {Informatics and Automation},
     pages = {142--146},
     publisher = {mathdoc},
     volume = {193},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1992_193_a26/}
}