Other formats are included only if they contain important scholarly information. In general, the nature of the publication is less important than its content. Articles include those published in Festschriften, periodicals, congress reports, yearbooks. International in coverage. Issued quarterly with five year cumulations.
Indexes usually occur in the last quarterly issue and cumulated in the five year volume.
Usually 3-4 years behind. Along with BDM and AHCI, RILM is useful as a basic evaluation of what is significant within a literature by inclusion and by abstract.