@article{02213782, title = {Gauge-equivalent deformations of linear ordinary differential operators with constant coefficients.}, journal = {Zapiski Nauchnykh Seminarov POMI}, volume = {314}, year = {2004}, pages = {235-251}, doi = {10.1007/s10958-005-0482-7}, zbl = {1087.34563}, language = {en}, url = {http://dml.mathdoc.fr/item/02213782} }
Khèkalo, S.P. Gauge-equivalent deformations of linear ordinary differential operators with constant coefficients.. Zapiski Nauchnykh Seminarov POMI, Tome 314 (2004) pp. 235-251. doi : 10.1007/s10958-005-0482-7. http://gdmltest.u-ga.fr/item/02213782/