@article{NCD_2007_10_a5,
     author = {Aleksandra Fostikov and Slobodan Mandi\'c},
     title = {New {Categories} of {Historical} {Sources:} {E-mail} and {Forum.} {Internet} {Communication} and {History} },
     journal = {Review of the National Center for Digitization},
     pages = {40 },
     publisher = {mathdoc},
     volume = {10},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NCD_2007_10_a5/}
}