@article{JSFU_2015_8_4_a6,
     author = {Marina S. Rogozina},
     title = {On the correctness of polynomial difference operators},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
     pages = {437--441},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JSFU_2015_8_4_a6/}
}