@article{PORMA_1998__55_1_47971,
     author = {Le Mau Hai and Pham Hien Bang},
     title = {Extending and lifting some linear topological structures.},
     journal = {Portugaliae mathematica},
     pages = {89--100},
     year = {1998},
     volume = {55},
     number = {1},
     zbl = {0896.46045},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1998__55_1_47971/}
}