@article{NCD_2008_13_1_a2,
     author = {Pavel I. Pavlov and Maria M. Nisheva-Pavlova},
     title = {Some {IT} aspects of building digital libraries with learning materials},
     journal = {Review of the National Center for Digitization},
     pages = {17 - 21},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2008},
     url = {http://geodesic.mathdoc.fr/item/NCD_2008_13_1_a2/}
}