@article{VMJ_2011_13_1_a8,
     author = {S. S. Kutateladze},
     title = {Teacher's gift},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {78--79},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2011_13_1_a8/}
}