@article{NCD_2023_43_1_a4,
     author = {Sonja Vidojevi\'c and Vera Proki\'c and Slobodan Ninkovi\'c},
     title = {Collections of {Astronomical} {Problems} in {Serbian}},
     journal = {Review of the National Center for Digitization},
     pages = {44 - 49},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {2023},
     url = {http://geodesic.mathdoc.fr/item/NCD_2023_43_1_a4/}
}