Anderson TR, Hankin RKS, Killworth PD. Beyond the Durfee square: Enhancing the h-index to score total publication output. Scientometrics 2008;76(3):577-78.
In this article, the authors propose a new bibliometric index, that is the "tapered h-index". It is known that the h-index of an individual scientist corresponds to the number h of his/her papers that each has at least h citations. Nevertheless it happens that the citation count of an article exceeds h. For this reason, in the specific case of the hundreds or thousands of citations that characterize the most highly cited papers, no additional credit is given. So this new index positively scores all citations and it shows smooth increases from year to year.