Woerden, paal uit Oude Rijn. 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的该研究中，1985年及之后开展的各项研究的实施年份，可在……中找到。