<https://www.pauwr.nl/blog/2011/06/google-plus-one-zichtbaar-in-nederlandse-adwords/#breadcrumb>
<http://schema.org/itemListElement>
_:nbde6d0a230fd4115bf25f5ff02e8952exb2
<https://www.pauwr.nl/blog/2011/06/google-plus-one-zichtbaar-in-nederlandse-adwords/>