ammattumari, assodare con ghiaja
http://books.google.fr/books?id=TYUCAAAAQAAJ&pg=PA89&lpg=PA89&dq=ammattiri&source=bl&ots=N1APL30X69&sig=ZaYmO5UoN3PMq13IxiJCFGMFJ8Y&hl=fr&ei=kum8S7Z0zZSxBpjrheUJ&sa=X&oi=book_result&ct=result&resnum=5&ved=0CBkQ6AEwBDgK#
