Using listview importing extern item

[spode]

How to use listview implemented in another file?

@
Rectangle
{
ListExter{}
}
@

ListExtern.qml
@
Rectangle {
ListView
{ model: modell; delegate: del }
@

I receive error can' t find variable: modell

[task_struct]

Where is modell defined?

Do you familiar with "QML variable scope":http://doc.qt.nokia.com/4.7-snapshot/qdeclarativescope.html ?