@article{ZNSL_2009_365_a10,
     author = {A. V. Prokopchuk and V. I. Yanchevskii},
     title = {On another proof for {B.~Sury's} theorem},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {196--207},
     publisher = {mathdoc},
     volume = {365},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2009_365_a10/}
}