Before revision:  Here we introduce a novel method to reconstruct  partially-accessible networked systemsof this kind. The method is based on the knowledge of the fitnesses, i.e., intrinsic node-specific properties , and of the number of connections of only a limited subset of nodes.
After revision:  Here we introduce a novel method to reconstruct partially-accessible systems, based on the knowledge of the fitnesses, i.e., intrinsic node-specific properties , and of the number of connections of only a limited subset of nodes.