What has the author Ernst Friedrich Theodor Vatke written?

There seems to be a misunderstanding. There is no widely recognized author by the name of "Ernst Friedrich Theodor Vatke." It's possible you might have misspelled the name or mixed up the author with someone else.

Could you please double-check the name or provide any additional information about the author you're looking for? For example:

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

* Do you have any other details about the author, like their time period or nationality?

With more information, I can help you find the author you're looking for.