@article{MABA_2011_25_5_a1,
     author = {G. Bogdanova and K. Stoffel and T. Todorov and N. Noev},
     title = {3D modeling of valuable {Bulgarian} bells and churches},
     journal = {Mathematica balkanica},
     pages = {475},
     publisher = {mathdoc},
     volume = {25},
     number = {5},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/MABA_2011_25_5_a1/}
}