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This work focuses on a class of distributed storage systems whose content may evolve over time. Each component or node of the storage system is mobile and the set of all nodes forms a Delay Tolerant (ad hoc) Network (DTN). The goal of the paper is to study efficient ways for distributing evolving files within DTNs and for managing dynamically their content. This paper specifies to dynamic files where not only the latest version is useful but also previous ones; the author restricts however to files where a file has no use if another more recent version is available.
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