한자의 뜻을 빌어 표기한 이름은 울릉도이고, 우리말을 같거나 비슷한 음을 지닌 한자로 쓴 이름이 가지도였을 것이다"고 했다.
The name written by borrowing the meaning of Chinese characters was Ulleungdo, and Gajido was probably the name written in Korean with the same or similar Chinese characters."