diff --git a/doc/3_Other_node_tree_representations.markdown b/doc/3_Other_node_tree_representations.markdown
index 9000412..f59988a 100644
--- a/doc/3_Other_node_tree_representations.markdown
+++ b/doc/3_Other_node_tree_representations.markdown
@@ -211,119 +211,4 @@ This will result in the following output (which includes attributes):
 ```
 
 There is currently no mechanism to convert JSON back into a node tree. Furthermore, not all ASTs
-can be JSON encoded. In particular, JSON only supports UTF-8 strings.
-
-Serialization to XML
---------------------
-
-It is also possible to serialize the node tree to XML using `PhpParser\Serializer\XML->serialize()`
-and to unserialize it using `PhpParser\Unserializer\XML->unserialize()`. This is useful for
-interfacing with other languages and applications or for doing transformation using XSLT.
-
-```php
-<?php
-$code = <<<'CODE'
-<?php
-
-function printLine($msg) {
-    echo $msg, "\n";
-}
-
-printLine('Hello World!!!');
-CODE;
-
-$parser = (new PhpParser\ParserFactory)->create(PhpParser\ParserFactory::PREFER_PHP7);
-$serializer = new PhpParser\Serializer\XML;
-
-try {
-    $stmts = $parser->parse($code);
-
-    echo $serializer->serialize($stmts);
-} catch (PhpParser\Error $e) {
-    echo 'Parse Error: ', $e->getMessage();
-}
-```
-
-Produces:
-
-```xml
-<?xml version="1.0" encoding="UTF-8"?>
-<AST xmlns:node="http://nikic.github.com/PHPParser/XML/node" xmlns:subNode="http://nikic.github.com/PHPParser/XML/subNode" xmlns:scalar="http://nikic.github.com/PHPParser/XML/scalar">
- <scalar:array>
-  <node:Stmt_Function line="2">
-   <subNode:byRef>
-    <scalar:false/>
-   </subNode:byRef>
-   <subNode:params>
-    <scalar:array>
-     <node:Param line="2">
-      <subNode:name>
-       <scalar:string>msg</scalar:string>
-      </subNode:name>
-      <subNode:default>
-       <scalar:null/>
-      </subNode:default>
-      <subNode:type>
-       <scalar:null/>
-      </subNode:type>
-      <subNode:byRef>
-       <scalar:false/>
-      </subNode:byRef>
-     </node:Param>
-    </scalar:array>
-   </subNode:params>
-   <subNode:stmts>
-    <scalar:array>
-     <node:Stmt_Echo line="3">
-      <subNode:exprs>
-       <scalar:array>
-        <node:Expr_Variable line="3">
-         <subNode:name>
-          <scalar:string>msg</scalar:string>
-         </subNode:name>
-        </node:Expr_Variable>
-        <node:Scalar_String line="3">
-         <subNode:value>
-          <scalar:string>
-</scalar:string>
-         </subNode:value>
-        </node:Scalar_String>
-       </scalar:array>
-      </subNode:exprs>
-     </node:Stmt_Echo>
-    </scalar:array>
-   </subNode:stmts>
-   <subNode:name>
-    <scalar:string>printLine</scalar:string>
-   </subNode:name>
-  </node:Stmt_Function>
-  <node:Expr_FuncCall line="6">
-   <subNode:name>
-    <node:Name line="6">
-     <subNode:parts>
-      <scalar:array>
-       <scalar:string>printLine</scalar:string>
-      </scalar:array>
-     </subNode:parts>
-    </node:Name>
-   </subNode:name>
-   <subNode:args>
-    <scalar:array>
-     <node:Arg line="6">
-      <subNode:value>
-       <node:Scalar_String line="6">
-        <subNode:value>
-         <scalar:string>Hello World!!!</scalar:string>
-        </subNode:value>
-       </node:Scalar_String>
-      </subNode:value>
-      <subNode:byRef>
-       <scalar:false/>
-      </subNode:byRef>
-     </node:Arg>
-    </scalar:array>
-   </subNode:args>
-  </node:Expr_FuncCall>
- </scalar:array>
-</AST>
-```
+can be JSON encoded. In particular, JSON only supports UTF-8 strings.
\ No newline at end of file