@article{10_4064_sm213_1_2,
     author = {Sungeun Jung and Yoenha Kim and Eungil Ko and Ji Eun Lee},
     title = {On $(A,m)$-expansive operators},
     journal = {Studia Mathematica},
     pages = {3--23},
     publisher = {mathdoc},
     volume = {213},
     number = {1},
     year = {2012},
     doi = {10.4064/sm213-1-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm213-1-2/}
}