@article{NCD_2017_31_1_a2,
     author = {Velislava Stoykova},
     title = {Digitization of {Bulgarian} {Natural} {Science} {School} {Books} {Published} in {Belgrade} {During} the {Period} of {National} {Revival} (1806-1878)},
     journal = {Review of the National Center for Digitization},
     pages = {18 - 24},
     publisher = {mathdoc},
     volume = {31},
     number = {1},
     year = {2017},
     url = {http://geodesic.mathdoc.fr/item/NCD_2017_31_1_a2/}
}