<http://www.nauka.pititi.pl/#personlogo>
<http://schema.org/url>
<http://1.gravatar.com/avatar/7977e573adf1da69a389beb7c2169db1?s=96&d=mm&r=g>
<http://www.nauka.pititi.pl/bez-mamutow-ocieplil-sie-klimat/>