Bing found the following results
Run-length encoding - Wikipedia
Run-Length Encoding - Stack Abuse
Run-Length Encoding and Decoding in Java | Baeldung
Run Length Encoding - an overview | ScienceDirect Topics
Run Length Encoding and Decoding - GeeksforGeeks
RLE compression | How run length encoding works - Prepressure
Run-Length Encoding (RLE) Algorithm: Step-by-Step Guide
Run Length Encoding (RLE) Data Compression Algorithm
Run-Length Encoding (RLE) for String Compression | CodingDrills
3.2: Run Length Encoding - Engineering LibreTexts