Egghe, L.; Proot, G. - In: Journal of Informetrics 1 (2007) 4, pp. 257-268
A probabilistic model is presented to estimate the number of lost multi-copy documents, based on retrieved ones. For this, we only need the number of retrieved documents of which we have one copy and the number of retrieved documents of which we have two copies. If we also have the number of...
