@article{IM2_1992_39_2_a6,
     author = {O. V. Odinokov},
     title = {Differential operators of infinite order with symbols of {Gevrey} class},
     journal = {Izvestiya. Mathematics },
     pages = {1085--1096},
     publisher = {mathdoc},
     volume = {39},
     number = {2},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1992_39_2_a6/}
}