A brief communication appearing in this journal ranked UK LIS and (some) IR academics by their h-index
using data derived from Web of Science. In this brief communication, the same academics were re-ranked,
using other popular citation databases. It was found that for academics who publish more in computer
science forums, their h was significantly different due to highly cited papers missed by Web of Science;
consequently their rank changed substantially. The study was widened to a broader set of UK LIS and IR
academics where results showed similar statistically significant differences. A variant of h, hmx, was
introduced that allowed a ranking of the academics using all citation databases together
