diff --git a/Biblio/src/Admin.java b/Biblio/src/Admin.java
new file mode 100644
index 0000000..2eaaa0a
--- /dev/null
+++ b/Biblio/src/Admin.java
@@ -0,0 +1,2 @@
+public class Admin {
+}
diff --git a/Biblio/src/UI.java b/Biblio/src/UI.java
new file mode 100644
index 0000000..d35959d
--- /dev/null
+++ b/Biblio/src/UI.java
@@ -0,0 +1,2 @@
+public class UI {
+}
diff --git a/Biblio/src/User.java b/Biblio/src/User.java
new file mode 100644
index 0000000..52dda73
--- /dev/null
+++ b/Biblio/src/User.java
@@ -0,0 +1,2 @@
+public class User {
+}