@article{PDA_1976_6_1_a16,
     author = {Lj. Miti\'c and I. Pakvor},
     title = {The {Vacuum} {Meridian} {Marks} of {Belgrade} {Observatory}},
     journal = {Publications of the Department of Astronomy},
     pages = {111 - 113},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1976},
     url = {http://geodesic.mathdoc.fr/item/PDA_1976_6_1_a16/}
}