@article{JRAM_1975__276_151607,
     author = {Manuel Valdivia},
     title = {A class of precompact sets in {Banach} spaces.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {130--136},
     year = {1975},
     volume = {276},
     zbl = {0306.46024},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1975__276_151607/}
}