@article{MABA_2011_25_4_a8,
     author = {A. Malcheski and V. Manova-Erakovik},
     title = {A {Characterization} of {n-Seminorm}},
     journal = {Mathematica balkanica},
     pages = {427},
     publisher = {mathdoc},
     volume = {25},
     number = {4},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/MABA_2011_25_4_a8/}
}