Soroush OjaghSara SaeediSteve H. L. Liang2025-05-142025-05-142020jz000145-0002https://tustorage.ulb.tu-darmstadt.de/handle/tustorage/19792550A Person-to-Person and Person-to-Place COVID-19 Contact Tracing System Based on OGC IndoorGMLArticlehttps://doi.org/10.3390/ijgi10010002