  During the 1990s, one of us developed a series of freeware routines
(http://www.leydesdorff.net/indicators) that enable the user to organize
downloads from the Web-of-Science (Thomson Reuters) into a relational database,
and then to export matrices for further analysis in various formats (for
example, for co-author analysis). The basic format of the matrices displays
each document as a case in a row that can be attributed different variables in
the columns. One limitation to this approach was hitherto that relational
databases typically have an upper limit for the number of variables, such as
256 or 1024. In this brief communication, we report on a way to circumvent this
limitation by using txt2Pajek.exe, available as freeware from
http://www.pfeffer.at/txt2pajek/.

Digital Libraries