@article{ZVMMF_1997_37_1_a7,
     author = {T. Petry},
     title = {Linear spaces for index~2 differential-algebraic equations},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {61--68},
     publisher = {mathdoc},
     volume = {37},
     number = {1},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1997_37_1_a7/}
}