@Article{ ANGULO_ROMERA:185-189,

author = { JUAN CARLOS ANGULO IBÁÑEZ and ELVIRA ROMERA GUTIÉRREZ } ,

title = { IMPROVED UPPER BOUNDS FOR THE ATOMIC IONIZATION POTENTIAL },

journal = { INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY },

year = { 1999 },

volume = { 71 },

issn = { 0020-7608 },

pages = { 185-189 },

}