@article{YJOR_1992_2_2_a4,
     author = {Sanja Petrovi\'c},
     title = {Providing {Help} in a {Natural} {Language} {Query} {Interface} to {Relational} {Databases}},
     journal = {Yugoslav journal of operations research},
     pages = {207 },
     publisher = {mathdoc},
     volume = {2},
     number = {2},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_1992_2_2_a4/}
}