@inbook{ LAMATA_MORAL:113-122,

author = { MARIA TERESA LAMATA JIMENEZ and SERAFÍN MORAL CALLEJÓN } ,

title = { UPPER AND LOWER PROBABILITIES },

booktitle = { SYSTEMS ANALYSIS AND COMPUTER SCIENCE },

publisher = { OMNITECH PRESS },

pages = { 113 - 122 },

year = { 1990 },

}