@article{MM2_1978__26_154596,
     author = {Manuel Valdivia},
     title = {Some notes on convex sets.},
     journal = {Manuscripta mathematica},
     pages = {381--386},
     publisher = {mathdoc},
     volume = {26},
     year = {1978},
     zbl = {0393.46014},
     url = {http://geodesic.mathdoc.fr/item/MM2_1978__26_154596/}
}