@article{ZNSL_2004_308_a13,
     author = {S. P. Khekalo},
     title = {The gauge related deformations of the ordinary linear differential operators with constant coefficients},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {235--251},
     publisher = {mathdoc},
     volume = {308},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2004_308_a13/}
}