@article{ZNSL_1976_64_a2,
     author = {Z. I. Borevich and G. I. Devyatko},
     title = {Invariant forms on modules with operators},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {30--48},
     publisher = {mathdoc},
     volume = {64},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_64_a2/}
}