Petra Osterwald

A nice video interview on YT.

<a href="https://www.youtube.com/v/VfamMMvk3y8&amp;t=3s" target="_blank" rel="noopener noreferrer" class="bbc_link bbc_flash_disabled new_win">https://www.youtube.com/v/VfamMMvk3y8&amp;t=3s</a>