@book { TheDaoinChineseCalligraphy,
    title = "The Dao in Chinese Calligraphy",
    subtitle = "Theories, Practices, and Perspectives",
    author = "Sun {Xiaoyun}",
    year = "2025",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    doi = "10.3726/b22002",
    url = "https://www.peterlang.com/document/1522908"
}