Reflections on the protection of intangible cultural heritage 并列题名:Reflections on the protection of intangible cultural heritage reflections on the knowledge of intangible cultural heritage Research on legal protection of intangible cultural heritage Intellectual property protection of intangible cultural heritage Research on the legal protection of intangible cultural heritage document protection of intangible cultural heritage 并列题名:Research on legal protection of intangible cultural heritage Research on the digitization of intangible cultural heritage Legal protection of intangible cultural heritage