id author title date pages extension mime words sentence flesch summary cache txt istl-2536 How Much Space Does a Library Need? Justifying Collections Space in an Electronic Age .html text/html 2809 145 58 Many studies have used some variation of this concept, such as an analysis of photocopy requests (Basile and Smith 1970), collection use data (Smethurst 1977), document delivery requests (Chrzastowski and Anthes 1995), and current awareness search results (Youngen 1999). The results show a significant difference in the ages at which the citations from each department met the target amounts, with Mathematics faculty being much more likely to cite older material than any of the others. cache/istl-2536.html txt/istl-2536.txt