@article{AIF_1974__24_3_57_0,
     author = {Valdivia, Manuel},
     title = {Some characterizations of ultrabornological spaces},
     journal = {Annales de l'Institut Fourier},
     pages = {57--66},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {24},
     number = {3},
     year = {1974},
     doi = {10.5802/aif.519},
     mrnumber = {51 #6344},
     zbl = {0287.46001},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.519/}
}