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  1. (, https://link.springer.com/chapter/10.1007/978-3-031-38938-2_3)
    Chang, Stephen (Ed.)
    For more than two decades, functional programmers have refined the persistent red-black tree—a data structure of unrivaled elegance. This paper presents another step in its evolution. Using a monad to communicate balancing information yields a fast insertion procedure, without sacrificing clarity. Employing the same monad plus a new decomposition simplifies the deletion procedure, without sacrificing efficiency. 
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    Accepted Manuscript Full Text Available