1. B tree wikipedia. https://en.wikipedia.org/wiki/B-tree. B tree wikipedia. https://en.wikipedia.org/wiki/B-tree.
2. Open zfs. https://en.wikipedia.org/wiki/OpenZFS. Open zfs. https://en.wikipedia.org/wiki/OpenZFS.
3. Total variation distance. https://en.wikipedia.org/wiki/Total_variation_distance_of_probability_measures. Total variation distance. https://en.wikipedia.org/wiki/Total_variation_distance_of_probability_measures.
4. Zfs caching. https://en.wikipedia.org/wiki/ZFS. Zfs caching. https://en.wikipedia.org/wiki/ZFS.
5. Characterizing user access to videos on the World Wide Web