diff --git a/Hard-Core-Monsters-Schedule-Map.md b/Hard-Core-Monsters-Schedule-Map.md
index 2f03188..39d3318 100644
--- a/Hard-Core-Monsters-Schedule-Map.md
+++ b/Hard-Core-Monsters-Schedule-Map.md
@@ -33,6 +33,7 @@ Printf("|%d| %d| %d| %d| %d|\n",i,year,month,day,hour);
 ```
 
 # GHC
+Derived from is_GHC_check()
 |Name                 |Monster ID |mhfsch index |
 | ------------------- | --------- | ----------- |
 |Berukyurosu          |85         |19           |
@@ -47,6 +48,7 @@ Printf("|%d| %d| %d| %d| %d|\n",i,year,month,day,hour);
 |White Monoblos       |44         |27           |
 
 # HC Monsters
+Derived from is_em_special_check()
 |Name                 |Monster ID |mhfsch index |
 | ------------------- | --------- | ----------- |
 |Cephadrome           |8          |16           |