Beesd N.H. Kerk. Projectnummer dendrochronologie (Stichting RING): 1999057

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...树木年代学（Dendrochronology）研究项目。存储于https://dataverse.nl/dataverse/stichtingring的研究资料中，1985年及之后开展的相关研究的年份信息可在……中查阅。