Groenlo Notenboomstraat 16. Projectnummer dendrochronologie (Stichting RING):...

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...树轮年代学研究项目（Dendrochronological research project）。存储于https://dataverse.nl/dataverse/stichtingring的该项研究，其1985年及以后的开展年份可于……中查询到。