Data were gathered on acknowledgements in five leading information science journals for the years 1991‐1999. The results were compared with data from two earlier studies of the same journals. Analysis of the aggregate data (1971‐1999) confirms the general impression that acknowledgement has...

This article explores recent developments in the production and delivery of scholarly journal articles in digital form. It identifies the key stakeholders as authors, publishers, librarians and end users. It explores their concerns with regard to the digital journal production and delivery...

On the basis of a twenty‐two month transaction log of SuperJournal and using K‐Means cluster analysis, this paper classifies a spectrum of user behaviour with electronic journals into a typology of eight categories of user (or eight patterns of use): the searcher, the enthusiastic user, the...

The methodology and findings are presented of an empirical study comparing local citation patterns with the holdings lists of a number of sources of journal articles. These sources were the British Library Document Supply Centre (BLDSC) and the BL inside service, library holdings, ProQuest...

Economic aspects of digital journal production and delivery were explored using Ithink Analyst, a modelling software package. Three models were developed and simulations were used to monitor the effect of variations in the values of key model elements. The results suggest that scholarly journals...

The existence of hierarchies based on reputation in modern science is indisputable. A set of common scientific journals is often assumed to be instrumental in the formation of these hierarchies. However, the character of the hierarchies, how monolithic/pluralistic they are and the functions of...

Compliance with international standards for the presentation of periodical publications was evaluated in 221 Spanish biomedical journals. The objectives of the study were to determine the degree to which standards are actually used, and to develop recommendations for improving standards and...

This communication describes the building of a list of constructed impact factors (CIF) for biomedical journals not included in the 1996 editions of the Journal Citation Reports (JCR). The online retrieval from the host DIMDI of the data needed for impact factor calculation is described in...

Symbols for concepts like ‘half life’, ‘impact factor’, ‘normalised impact factor’ and ‘immediacy index’ are proposed and formulas for the determination of their values are provided. The features of the concepts are also highlighted.