@article{10_21136_CMJ_1996_127287,
     author = {Le\'on, Manuel de and Orta\c{c}gil, Erc\"ument},
     title = {On frames defined by horizontal spaces},
     journal = {Czechoslovak Mathematical Journal},
     pages = {241--248},
     publisher = {mathdoc},
     volume = {46},
     number = {2},
     year = {1996},
     doi = {10.21136/CMJ.1996.127287},
     mrnumber = {1388613},
     zbl = {0870.58005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1996.127287/}
}