diff --git a/publications/MRL-0006 - Difficulty Adjustment Algorithms in Cryptocurrency Protocols/mrl.cls b/publications/research-bulletins/in-prog/MRL-0006 - Difficulty Adjustment Algorithms in Cryptocurrency Protocols/mrl.cls similarity index 100% rename from publications/MRL-0006 - Difficulty Adjustment Algorithms in Cryptocurrency Protocols/mrl.cls rename to publications/research-bulletins/in-prog/MRL-0006 - Difficulty Adjustment Algorithms in Cryptocurrency Protocols/mrl.cls