Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Donatello:

This text is part of the article's lead section, so referencing it may be optional. Please see WP:CITELEAD for more information.

"

He worked with stone, bronze, wood, clay, stucco, and wax, and used glass in inventive ways. He had several assistants, with four perhaps being a typical number.[citation needed] Although his best-known works are mostly statues executed in the round, he developed a new, very shallow, type of bas-relief for small works, and a good deal of his output was architectural reliefs for pulpits, altars and tombs, as well as Madonna and Childs for homes.