Vroegmiddeleeuwse platbodem Utrecht 6. Projectnummer dendrochronologie (Stich...

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。存储于https://dataverse.nl/dataverse/stichtingring的该项研究中，其研究开展的年份数据（时间范围自1985年起）可在……中查询到。