http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Estimating the query difficulty for information retrieval
Synthesis digital library of engineering and computer science
"This volume is a printed version of a work that appears in the Synthesis digital library of engineering and computer science"--page [4] of cover.
Synthesis lectures on information concepts, retrieval, and services ; #15