Extensions to the STAIRS Study-Empirical Evidence for the Hypothesised Ineffectiveness of Boolean Queries in Large Full-Text Databases.

Eero Sormunen Extensions to the STAIRS Study-Empirical Evidence for the Hypothesised Ineffectiveness of Boolean Queries in Large Full-Text Databases. 257-273 2001 4 Inf. Retr. 3-4 db/journals/ir/ir4.html#Sormunen01