@article{10_4064_sm_60_1_11_13,
     author = {M. Valdivia},
     title = {On class of {Banach} spaces},
     journal = {Studia Mathematica},
     pages = {11--13},
     publisher = {mathdoc},
     volume = {60},
     number = {1},
     year = {1977},
     doi = {10.4064/sm-60-1-11-13},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-60-1-11-13/}
}