Hengelo Huys Hengelo. Projectnummer dendrochronologie (Stichting RING): 1995021

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...树木年代学研究项目（Dendrochronological Research Project）。1985年及之后开展、存储于https://dataverse.nl/dataverse/stichtingring的相关研究的开展年份，可在……中查阅到。