<adminhtml>
    <menu>
    <seminar translate="title" module="seminar">
            <title>Seminar</title>
            <sort_order>36</sort_order>
    </seminar>
        <seminar>
     <children>
      <glossary translate="title" module="seminar">
       <title>Eintrag</title>
       <action>adminhtml/seminar</action> 
      </glossary>
     </children>
        </seminar>
    <seminar>
     <children>
      <glossary translate="title" module="seminar">
       <title>Eintrag 2</title>
       <action>adminhtml/seminar2</action> 
      </glossary>
     </children>
        </seminar>
    </menu>
</adminhtml>