@article{VMJ_2019_21_3_a4,
     author = {A. E. Pasenchuk and V. V. Seregina},
     title = {About {Riemann} matrix operator in the space of smooth vector functions},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {50--61},
     publisher = {mathdoc},
     volume = {21},
     number = {3},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2019_21_3_a4/}
}