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diff --git a/src/databases/kv/README.md b/src/databases/kv/README.md
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 ## kv databases
 
-- **[Optimizing Space Amplification in RocksDB][rocksdb-cidr17]**
+- **[Optimizing Space Amplification in RocksDB][rocksdb-cidr17], 2017**
+- **[Evolution of Development Priorities in Key-value Stores Serving Large-scale Applications: The RocksDB Experience][fast21-dong], 2021**
 
-[rocksdb-cidr17]: optimizing-space-amplification-in-rocksdb.md
\ No newline at end of file
+[rocksdb-cidr17]: optimizing-space-amplification-in-rocksdb.md
+[fast21-dong]: /assets/pdfs/fast21-dong.pdf