id author title date pages extension mime words sentence flesch summary cache txt istl-2031 Materials Used by Master's Students in Engineering .html text/html 3910 229 47 Eugene Garfield (1977c; 1977a) published two studies of engineering journal citations from the Institute for Scientific Information (ISI) database that supported Bradford's Law. Coile's (1952) study of citations in electrical engineering journals was the first to rank engineering journals based on citations. cache/istl-2031.html txt/istl-2031.txt