@conferenceObjectPart{Herb_2010,
title={OpenAccess Statistics: alternative impact measures for Open Access documents? : an examination how to generate interoperable usage information from distributed Open Access services},
author={Herb, Ulrich},
isbn={978-2-84365-123-6},
doi={http://dx.doi.org/10.22028/D291-23718},
year={2010}
}