diff --git a/runtime/Core/src/main/kotlin/org/antlr/v5/runtime/core/atn/ATN.kt b/runtime/Core/src/main/kotlin/org/antlr/v5/runtime/core/atn/ATN.kt
index a791d37d9..79d051362 100644
--- a/runtime/Core/src/main/kotlin/org/antlr/v5/runtime/core/atn/ATN.kt
+++ b/runtime/Core/src/main/kotlin/org/antlr/v5/runtime/core/atn/ATN.kt
@@ -8,7 +8,8 @@ import org.antlr.v5.runtime.core.state.*
 import org.antlr.v5.runtime.core.transition.RuleTransition
 
 /**
- * Used for runtime deserialization of ATNs from strings.
+ * ATN stands for Augmented Transition Network, see https://en.wikipedia.org/wiki/Augmented_transition_network
+ * Used for runtime deserialization of ATNs from literals.
  *
  * @param grammarType The type of the ATN
  * @param maxTokenType The maximum value for any symbol recognized
diff --git a/runtime/Core/src/main/kotlin/org/antlr/v5/runtime/core/dfa/DFA.kt b/runtime/Core/src/main/kotlin/org/antlr/v5/runtime/core/dfa/DFA.kt
index 6c3de535c..8e7d184d7 100644
--- a/runtime/Core/src/main/kotlin/org/antlr/v5/runtime/core/dfa/DFA.kt
+++ b/runtime/Core/src/main/kotlin/org/antlr/v5/runtime/core/dfa/DFA.kt
@@ -12,6 +12,9 @@ import org.antlr.v5.runtime.core.state.DecisionState
 import org.antlr.v5.runtime.core.state.StarLoopEntryState
 import kotlin.concurrent.Volatile
 
+/** DFA stands for Deterministic Finite Automaton, see https://en.wikipedia.org/wiki/Deterministic_finite_automaton
+ */
+
 public open class DFA(
     /**
    * From which ATN state did we create this DFA?