Groningen Folkingestraat 37-39, beerput. Projectnummer dendrochronologie (Sti...

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。存放在https://dataverse.nl/dataverse/stichtingring中的该研究，其1985年及之后的开展年份信息可在……中找到。