@article{NCD_2014_24_1_a5,
     author = {Milcho Tsvetkov and Katya Tsvetkova},
     title = {WFPDB {Technology} for {Astronomical} {Plate} {Digitization}},
     journal = {Review of the National Center for Digitization},
     pages = {29 - 34},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2014},
     url = {http://geodesic.mathdoc.fr/item/NCD_2014_24_1_a5/}
}