* Misspelling: You might have misremembered or misspelled the author's name. Double-check for any errors in the name.
* Pseudonym: It's possible the author uses a pseudonym, and "Paul Hans Lissberger" is not their real name.
* Unpublished Author: The author might be a lesser-known or unpublished writer.
To help you find the author you're looking for, please provide more information such as:
* The genre or topic of the author's work: Is it fiction, non-fiction, a specific subject?
* Any other details about the author or their work: Do you remember the title of a book or any specific details about their writing style?
With more information, I can help you identify the author you're looking for.