Caching paths

Hi there, I am developing a cache system for my A* algorithm and I would like to find out a little more about the state of art at the moment. The problem is that I couldn’t really find much on caching on academic articles. Most results either say “you may cache it” or are just an ad-hoc implementation that is either an ordered list or a hash table. I am wondering if anyone knows an article or can point me into some article about path caching. Thanks in advance.

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