What has the author Emile de Harven written?

There doesn't seem to be an author named "Emile de Harven" with any significant publications. It's possible there's a spelling error or the name is less common.

Could you please double-check the name or provide more context? For example:

* Is there a specific book or topic you are interested in?

* Do you have any other information about the author, such as their nationality or time period?

With more information, I might be able to help you find the author you're looking for.