diff --git a/pl/java/features/class/sealed.txt b/pl/java/features/class/sealed.txt
deleted file mode 100644
index b4da412a3..000000000
--- a/pl/java/features/class/sealed.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-2023
-https://proandroiddev.com/sealed-class-an-alternative-approach-to-the-visitor-pattern-in-kotlin-and-java-21-b7a77ecc7ee2
diff --git a/pl/java/features/reflection/articles.txt b/pl/java/features/reflection/articles.txt
index 2176af348..35b1f25d7 100644
--- a/pl/java/features/reflection/articles.txt
+++ b/pl/java/features/reflection/articles.txt
@@ -1,3 +1,5 @@
+2024
+https://www.baeldung.com/java-reflection
 2023
 https://levelup.gitconnected.com/a-deep-dive-into-classloader-reflection-dynamic-typing-and-runtime-modifiable-classes-in-java-c83d6d689b2
     https://nuancesprog.ru/p/19167/
diff --git a/pl/java/features/types/sealed.txt b/pl/java/features/types/sealed.txt
index 3720fb9fc..4640f7f1e 100644
--- a/pl/java/features/types/sealed.txt
+++ b/pl/java/features/types/sealed.txt
@@ -1,3 +1,6 @@
+2024
+https://www.baeldung.com/java-sealed-classes-interfaces
 2023
+https://proandroiddev.com/sealed-class-an-alternative-approach-to-the-visitor-pattern-in-kotlin-and-java-21-b7a77ecc7ee2
 https://foojay.io/today/java-sealed-classes-in-action-building-robust-and-secure-applications/
     https://habr.com/ru/company/otus/blog/720044/
diff --git a/pl/web/design/diagrams/schemio.txt b/pl/web/design/diagrams/schemio.txt
new file mode 100644
index 000000000..0ef986bb8
--- /dev/null
+++ b/pl/web/design/diagrams/schemio.txt
@@ -0,0 +1,5 @@
+https://schem.io/
+https://github.com/ishubin/schemio
+
+2024
+https://habr.com/ru/articles/870462/