diff --git a/LICENSE b/LICENSE
index 3058c8d..1292dbb 100644
--- a/LICENSE
+++ b/LICENSE
@@ -54,20 +54,3 @@ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
 
 END OF TERMS AND CONDITIONS
 
-APPENDIX: How to apply the Apache License to your work.
-
-To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!)  The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives.
-
-Copyright 2023 Divan
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/README.md b/README.md
index b886fec..0fa4f57 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,12 @@
 # bipack_ru
 
-Bipack format implementation, minimalistic by purpose.
\ No newline at end of file
+Bipack format implementation, minimalistic by purpose.
+
+At the moment it does not include `serde` module as it is yet unclear how much
+it will increase .wasm size. Could be added later.
+
+The autodoc documentation is good enough already, so we do not repeat it here now.
+
+# License
+
+For compyance with other modules this work is provided under APACHE 2.0 license a copy of which is included in the file `LICENSE`.
\ No newline at end of file
diff --git a/src/bipack_sink.rs b/src/bipack_sink.rs
index d968356..5978a82 100644
--- a/src/bipack_sink.rs
+++ b/src/bipack_sink.rs
@@ -1,3 +1,17 @@
+// Copyright 2023 by Sergey S. Chernov.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 use std::iter::Iterator;
 use std::usize;
 
diff --git a/src/bipack_source.rs b/src/bipack_source.rs
index 6bfc981..1001bf5 100644
--- a/src/bipack_source.rs
+++ b/src/bipack_source.rs
@@ -1,3 +1,17 @@
+// Copyright 2023 by Sergey S. Chernov.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 use std::error::Error;
 use std::fmt::{Display, Formatter};
 use std::string::FromUtf8Error;
diff --git a/src/lib.rs b/src/lib.rs
index 1c8a8d1..308917b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,17 @@
+// Copyright 2023 by Sergey S. Chernov.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 //! # Bipack codec
 //!
 //! The set of tools to effectively encode and decode bipack values. It is internationally
@@ -117,7 +131,6 @@ mod tests {
             .expect("decoded vector");
         println!(": {}", hex::encode(&src));
         let mut ss = SliceSource::from(&src);
-        let d7 = ss.get_u8()?;
         assert_eq!(7, ss.get_u8()?);
         assert_eq!(64000, ss.get_u16()?);
         assert_eq!(66000, ss.get_u32()?);
diff --git a/src/tools.rs b/src/tools.rs
index d5d9f93..661728e 100644
--- a/src/tools.rs
+++ b/src/tools.rs
@@ -1,4 +1,16 @@
-// use string_builder::Builder;
+// Copyright 2023 by Sergey S. Chernov.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
 
 use string_builder::Builder;