@article{ASUO_2015_XXIII_2_a4,
     author = {Primitivo Acosta-Humanez and Kevin Esmeral and Osmin Ferrer},
     title = {Frames of subspaces in {Hilbert} spaces with {W-metrics}},
     journal = {Analele Universit\u{a}\c{t}ii "Ovidius" Constan\c{t}a Seria Matematic\u{a}},
     publisher = {mathdoc},
     volume = {XXIII},
     number = {2},
     year = {2015},
     url = {http://geodesic.mathdoc.fr/item/ASUO_2015_XXIII_2_a4/}
}