Intellectual property protection of intangible cultural heritage Reflections on the protection of intangible cultural heritage Research on legal protection of intangible cultural heritage 并列题名:Reflections on the protection of intangible cultural heritage Legal protection of intangible cultural heritage Research on the legal protection of intangible cultural heritage 并列题名:Research on legal protection of intangible cultural heritage Policy support for productive protection of intangible cultural heritage Empirical research on trademark protection of intangible cultural heritage 并列题名:Policy support for productive protection of intangible cultural heritage