diff --git a/Makefile b/Makefile
index 977765f..56d210a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,7 @@
 ##
 # File: Makefile
 # Author: Jaroslav Louma (xlouma00@stud.fit.vutbr.cz)
+# Author: Radim Mifka (xmifka00@stud.fit.vutbr.cz)
 # Date: 2023-09-01
 # Brief: This file is part of the IFJ23 project.
 ##
diff --git a/include/compiler/parser/ASTNodes.h b/include/compiler/parser/ASTNodes.h
index b3f1602..77872f0 100644
--- a/include/compiler/parser/ASTNodes.h
+++ b/include/compiler/parser/ASTNodes.h
@@ -2,7 +2,8 @@
  * @file include/compiler/parser/ASTNodes.h
  * @author Jaroslav Louma <xlouma00@stud.fit.vutbr.cz>
  * @author Veronika Krobotová <xkrobo03@stud.fit.vut.cz>
- * @brief This file is part of the IFJ23 project.
+ * @author Radim Mifka <xmifka00@stud.fit.vut.cz>
+ * @brief Header file for abstract syntax tree nodes.
  * @copyright Copyright (c) 2023
  */
 
diff --git a/src/compiler/parser/ASTNodes.c b/src/compiler/parser/ASTNodes.c
index 8d1cad9..0ac10c6 100644
--- a/src/compiler/parser/ASTNodes.c
+++ b/src/compiler/parser/ASTNodes.c
@@ -1,8 +1,9 @@
 /**
  * @file src/compiler/parser/ASTNodes.c
  * @author Jaroslav Louma <xlouma00@stud.fit.vutbr.cz>
- * @author Veronika Krobotová <xkrobo03@stud.fit.vut.cz> 
- * @brief This file is part of the IFJ23 project.
+ * @author Veronika Krobotová <xkrobo03@stud.fit.vut.cz>
+ * @author Radim Mifka <xmifka00@stud.fit.vut.cz>
+ * @brief Implementation of nodes for abstract syntax tree.
  * @copyright Copyright (c) 2023
  */
 
diff --git a/src/compiler/parser/Parser.c b/src/compiler/parser/Parser.c
index 361048d..1051c40 100644
--- a/src/compiler/parser/Parser.c
+++ b/src/compiler/parser/Parser.c
@@ -1,7 +1,8 @@
 /**
  * @file src/compiler/parser/Parser.c
  * @author Jaroslav Louma <xlouma00@stud.fit.vutbr.cz>
- * @brief This file is part of the IFJ23 project.
+ * @author Radim Mifka <xmifka00@stud.fit.vutbr.cz>
+ * @brief Implemetation of recusive descent parser.
  * @copyright Copyright (c) 2023
  */
 
diff --git a/src/internal/Array.c b/src/internal/Array.c
index 4743f08..67a1742 100644
--- a/src/internal/Array.c
+++ b/src/internal/Array.c
@@ -1,7 +1,8 @@
 /**
  * @file src/internal/Array.c
  * @author Jaroslav Louma <xlouma00@stud.fit.vutbr.cz>
- * @brief This file is part of the IFJ23 project.
+ * @author Radim Mifka <xmifka00@stud.fit.vutbr.cz>
+ * @brief Implementation of String data structure.
  * @copyright Copyright (c) 2023
  */
 
diff --git a/src/internal/String.c b/src/internal/String.c
index 4503645..70dda6c 100644
--- a/src/internal/String.c
+++ b/src/internal/String.c
@@ -1,7 +1,8 @@
 /**
  * @file src/internal/String.c
  * @author Jaroslav Louma <xlouma00@stud.fit.vutbr.cz>
- * @brief This file is part of the IFJ23 project.
+ * @author Radim Mifka <xmifka00@stud.fit.vutbr.cz>
+ * @brief Implementation of String data structure.
  * @copyright Copyright (c) 2023
  */