@article{AUPO_2011__50_2_a4,
     author = {Hefty, J\'an and Gerh\'atov\'a, \v{L}ubom{\'\i}ra},
     title = {Combination of {3D} epoch-wise and permanent geodetic networks observed by {GNSS}},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {37--44},
     publisher = {mathdoc},
     volume = {50},
     number = {2},
     year = {2011},
     zbl = {1244.86009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_2011__50_2_a4/}
}