diff --git a/protocol/sacn/source.h b/protocol/sacn/source.h
index a1d46df..be150c9 100644
--- a/protocol/sacn/source.h
+++ b/protocol/sacn/source.h
@@ -52,8 +52,10 @@ public:
 
     virtual void create(const uint16_t);
     virtual void terminate(const uint16_t);
+
     std::shared_ptr<Universe> universe(const uint16_t);
 
+    // from ACN::Component
     virtual void assignUserName(const std::string) override;
 
 
@@ -67,9 +69,9 @@ protected:
 
 private:
     std::unordered_map <uint16_t, std::shared_ptr<Universe>> universes_;
-    mutable std::mutex universes_mutext_;
+    mutable std::mutex universes_mutext_;           //!< thread safety protection for universes_
 
-    /// > \cite 6.3.2 E1.31 Synchronization Packet: Sequence Number
+    /// > \cite sACN 6.3.2 E1.31 Synchronization Packet: Sequence Number
     /// >
     /// > Sources shall maintain a sequence for each universe they transmit.
     /// > The sequence number for a universe shall be incremented by one for