I am looking for books or to state of the art papers about current the development trends for a strong-AI.
Please, do not include opinions about the books, just refer the book with a brief description. To emphasize, I am not looking for books on applied AI (e.g. neural networks or the book by Norvig). Furthermore, do not consider AGI proceedings, which contains papers that focus on very concrete aspects. The related Wikipedia describes some active investigation lines about AGI (cognitive, neuroscience, etc.) but can not be considered an educational/introductory resource. Finally, I am not interested in philosophical questions related to AI safety or risks or its morality if they are not related to its development. Development doesn't exclude mathematical foundation about it.
By example, if I look by example at this list "https://bigthink.com/mike-colagrossi/the-10-best-books-on-ai", the final candidates list became empty.