@article{NCD_2006_8_1_a4,
     author = {Andrey Andreev and Nikolay Kirov},
     title = {Word {Image} {Matching} {In} {Bulgarian} {Historical} {Documents}},
     journal = {Review of the National Center for Digitization},
     pages = {29 - 35},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {2006},
     url = {http://geodesic.mathdoc.fr/item/NCD_2006_8_1_a4/}
}