@article{PDA_1970_2_1_a3,
     author = {J. Lazovi\'c},
     title = {Groups of {Quasicomplanar} {Asteroids}},
     journal = {Publications of the Department of Astronomy},
     pages = {25 - 27},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1970},
     url = {http://geodesic.mathdoc.fr/item/PDA_1970_2_1_a3/}
}