Shuang LiChengqi ChengGuoliang PuBo Chen2025-05-142025-05-142019jz000156-0121https://tustorage.ulb.tu-darmstadt.de/handle/tustorage/27772550QRA-Grid: Quantitative Risk Analysis and Grid-based Pre-warning Model for Urban Natural Gas PipelineArticlehttps://doi.org/10.3390/ijgi8030122