@article{PDA_1979_9_1_a1,
     author = {Dragutin Djurovi\'c},
     title = {Secular and {Periodical} {Variations} of {UT2-TAI}},
     journal = {Publications of the Department of Astronomy},
     pages = {17 - 30},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {1979},
     url = {http://geodesic.mathdoc.fr/item/PDA_1979_9_1_a1/}
}