In Van Rijn, P. W., & Ali, U. S. (2017), the second affiliation for Usama S. Ali was omitted and it should read as given below:

South Valley University, Qena, Egypt.

The author’s second affiliation has been added to the online article.

中文翻译：

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更正

在Van Rijn，PW和Ali，US（2017）中，省略了Usama S. Ali的第二个从属关系，其内容如下：

埃及Qena的South Valley University。

作者的第二隶属关系已添加到在线文章中。