Dronrijp N.H. Kerk. Projectnummer dendrochronologie (Stichting RING): 2000025

Dendrochronological research project. The year in which the research stored in https://dataverse.nl/dataverse/stichtingring took place, from 1985 onwards can be found in the...树轮年代学（Dendrochronology）研究项目。存储于https://dataverse.nl/dataverse/stichtingring的研究资料，其1985年及以后开展的相关研究的年份信息可于……中查询。