[<a href="https://www.linkedin.com/school/延å®大学/" itemprop="sameAs" rel="noopener nofollow" target="_blank"> Yan'an University's LinkedIn profile</a>, <a href="https://zh.wikipedia.org/wiki/延å®大学" itemprop="sameAs" rel="noopener nofollow" target="_blank"> Yan'an University's Wikipedia article</a>]