Mapping of science by combined co-citation and word analysis, I. Structural aspects. - Robert R. Braam; Henk F. Moed; Anthony F. J. van Raan (J. Am. Soc. Inf. Sci., 1991)

Mapping of science by combined co-citation and word analysis: II: Dynamical aspects. - Robert R. Braam; Henk F. Moed; Anthony F. J. van Raan (J. Am. Soc. Inf. Sci., 1991)

Quality of indexing information: authors' views on indexing of their articles in Chemical Abstracts online CA-file. - Robert R. Braam; Jeanet Bruil (J. Inf. Sci., 1992)

Cognitive Resemblance and Citation Relations in Chemical Engineering Publications. - H. P. F. Peters; Robert R. Braam; Anthony F. J. van Raan (J. Am. Soc. Inf. Sci., 1995)