@article{PDA_1983_12_a4,
     author = {N. Pejovi\'c},
     title = {Preliminary {Analysls} of the {Secular} and {Main} {Harmonic} {Terms} in the {Polar} {Motion}},
     journal = {Publications of the Department of Astronomy},
     pages = {41 },
     publisher = {mathdoc},
     volume = {12},
     year = {1983},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PDA_1983_12_a4/}
}