@article{PIM_1975_N_S_19_33_a17,
     author = {Manojlo Maravi\'c},
     title = {On {Spectral} {Means} {And} {Some} {Of} {Their} {Applications}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {111 },
     publisher = {mathdoc},
     volume = {_N_S_19},
     number = {33},
     year = {1975},
     url = {http://geodesic.mathdoc.fr/item/PIM_1975_N_S_19_33_a17/}
}