@article{DA_1974_12_a10,
     author = {Yu. V. Shamardin},
     title = {On a differential game of quality},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {73--80},
     publisher = {mathdoc},
     number = {12},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_1974_12_a10/}
}