ts:referenceFrame

• http://hosi.org/When/TM/CalendarEra/Chinese
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::東魏
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::東魏::興和
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::東魏::武定
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::北斉
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::北斉::天保
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::北斉::乾明
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::北斉::皇建
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::北斉::太寧
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::北斉::河清
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::北斉::天統
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::北斉::武平
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::北斉::徳昌
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::北斉::隆化
• http://hosi.org/When/TM/CalendarEra/Chinese::北朝::北斉::承光