Barriers to the use of patent information in UK small and medium-sized enterprises. Part I: Questionnaire survey. - Matthew Hall; Charles Oppenheim; Margaret Sheen (J. Inf. Sci., 1999)

Barriers to the use of patent information in UK small and medium-sized enterprises. Part 2 (1): Results of in-depth interviews. - Matthew Hall; Charles Oppenheim; Margaret Sheen (J. Inf. Sci., 2000)