Groningen Singelstraat, palen bij wal en gracht. Projectnummer dendrochronolo...

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 中的该项研究的实施年份（1985年及之后）可于……中查询到。