Xiangqiang MinDieter PfoserAndreas ZüfleYehua Sheng2025-05-142025-05-142021jz000145-0808https://tustorage.ulb.tu-darmstadt.de/handle/tustorage/23046550A Hierarchical Spatial Network Index for Arbitrarily Distributed Spatial ObjectsArticlehttps://doi.org/10.3390/ijgi10120814