@article{MM2_1972__7_154122,
     author = {Manuel Valdivia},
     title = {On {Non-Semi-Reflexive} {Spaces.}},
     journal = {Manuscripta mathematica},
     pages = {307--314},
     publisher = {mathdoc},
     volume = {7},
     year = {1972},
     zbl = {0239.46003},
     url = {http://geodesic.mathdoc.fr/item/MM2_1972__7_154122/}
}