<https://www.thelearningapps.com/blog/>
<http://schema.org/datePublished>
"2018-05-21T05:40:19+00:00"^^<http://schema.org/Date>
<https://www.thelearningapps.com/el/blog/%CF%83%CE%B5%CE%BB%CE%AF%CE%B4%CE%B1/10/>