Index: doc/tutorial.html
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--- doc/tutorial.html	(.../tutorial.html)	(revision c72f9f638677608fab1502cd696c8f2d6b2952f9)
+++ doc/tutorial.html	(.../tutorial.html)	(revision c2f6b67e7b36f9b7f9e69362420ce572847df18e)
@@ -4,7 +4,7 @@
 <HEAD>
 	<TITLE>XOTcl - Tutorial</TITLE>
 	<META NAME="AUTHOR" CONTENT="Gustaf Neumann and Uwe Zdun">
-	<META NAME="DOCNUMBER" CONTENT="1.5.5">
+	<META NAME="DOCNUMBER" CONTENT="1.6.0">
 	<META NAME="CHANGEDBY" CONTENT="Gustaf Neumann">
 <STYLE>
 BODY	{
@@ -923,9 +923,7 @@
 for objects and classes (there are special info options for object
 aggregations, nested classes, mixins, filters, meta-data and
 assertions, which are explained separately in the following
-sections). The <tt>info</tt> instance method's options, from the view
-of an object, are summarized in the following table. They are
-identically to the OTcl info options on objects.
+sections). 
 </P>
 <CENTER>
       <P><A NAME="table_oinfo"></A>
@@ -1219,8 +1217,8 @@
 	  </TD>
 	</TR>
       </TABLE>
-</CENTER>
-<P><BR></P>
+</CENTER>  
+<P>The full list of info options is provided in the language reference.</P>
 <H3><A NAME="class_inheritance"></A>Inheritance 
 </H3>
 <P>Besides encapsulation of operations and state in objects, a second
@@ -1842,6 +1840,14 @@
   <tt>puts</tt> class=[c2 <tt>info</tt> class]
 </pre>
 
+Starting with XOTcl 1.4.0, xotcl provides also a user-friendly
+way for a structure-prevering recreate implemented in C. Since this version, one
+can configure "softrecreate" as follow.
+<pre CLASS="code">
+<tt>::xotcl::configure softrecreate</tt> true
+</pre>
+This command causes that recreates are structure-conservative.
+
 <H2>
 <A NAME="non-pos-args"></A>Methods with Non-Positional Arguments
 </H2>
@@ -2559,6 +2565,7 @@
 <pre CLASS="code">
   <em>objName</em> <tt>mixin</tt> <em>mixinList</em>
 </pre><P>
+
 For example we may create two interactive agents, where one is logged
 and one is tested: 
 </P>
@@ -2593,17 +2600,23 @@
 <P><BR><BR>
 </P>
 <P>The <tt>mixin</tt> option of the <tt>info</tt> instance method
-allows us to introspect the per-object mix-ins. It has the syntax: 
+allows us to introspect the per-object mixins. It has the syntax: 
 </P>
 <pre CLASS="code">
-  <em>objName</em> <tt>info</tt> mixin <em>?className?</em>
+  <em>objName</em> <tt>info</tt> mixin <em>?pattern?</em>
 </pre>
 <P STYLE="margin-bottom: 0in">
-It returns the list of all mix-ins of the object, if <tt>className</tt>
-is not specified, otherwise it returns <tt>1</tt>, if <tt>className</tt>
-is a mixin of the object, or <tt>0</tt> if not. 
+It returns the list of all mix-ins of the object, if <tt>pattern</tt>
+is not specified, otherwise it returns the matching per object mixin classes.
 </P>
-
+	
+The inverse operation of <tt>info mixin</tt> is <tt>mixinof</tt> finds
+out, into which objects an per-object mixin class is mixed into.
+	
+<pre CLASS="code">
+  <em>clsName</em> <tt>info</tt> mixinof <em>?pattern?</em>
+</pre>
+	
 <P> Note, that the constructors (init methods) of per-object mixins (and per-class mixins)
 are only called, if the mixin is registered already during object
 initialization (when <tt>init</tt> is called). For per-object mixins, one can 
@@ -2682,6 +2695,12 @@
 <pre CLASS="code">
   <em>className</em> <tt>instmixin</tt> <em>mixinList</em>
 </pre>
+The inverse operation of <tt>info inmixin</tt> is <tt>instmixinof</tt> finds
+out, into which objects an per-object mixin class is mixed into.
+	
+<pre CLASS="code">
+  <em>className</em> <tt>info</tt> instmixinof <em>?-closure? ?pattern?</em>
+</pre>
 <P>
 Now consider that in the given per-object mixin example all
 interactive agents should be tested. We could either build a subclass
@@ -4723,7 +4742,13 @@
 	</TR>
 </TABLE>
 
-<P></P><A NAME="xotcl-filter"><STRONG>[Neumann and Zdun 1999a]</STRONG></A>
+
+<P></P> <STRONG>[Zdun, Strembeck, Neumann 2007]</STRONG> U. Zdun,
+M. Strembeck, G. Neumann: Object-Based and Class-Based Composition of
+Transitive Mixins, <em>Information and Software Technology</em>, 49(8) 2007 .
+
+<P></P>
+<A NAME="xotcl-filter"><STRONG>[Neumann and Zdun 1999a]</STRONG></A>
 G. Neumann and U. Zdun.
 Filters as a language support for design patterns in object-oriented
   scripting languages.
