@article{ZNSL_1977_70_a5,
     author = {V. N. Kublanovskaya},
     title = {Analysis of singular matrix pencils},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {89--102},
     year = {1977},
     volume = {70},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1977_70_a5/}
}