Study of archival value and development of intangible cultural heritage 并列题名:Study of archival value and development of intangible cultural heritage Digital protection and development of intangible cultural heritage 并列题名:Digital protection and development of intangible cultural heritage Study on the communication of intangible cultural heritage Primary research on integrated development of intangible cultural heritage and tourism Research on legal protection of intangible cultural heritage 并列题名:Research on legal protection of intangible cultural heritage Research on revaluation of culture and preservation of intangible cultural heritage the collection of creative cases of intangible cultural heritage