@Article{isprs-archives-L-4-W2-2026-209-2026,
AUTHOR = {Ugwu, C. and Yao, Z.},
TITLE = {From CityGML to I3S: An Empirical Evaluation of Open-Source Conversion Workflows for Interoperable 3D City Models},
JOURNAL = {The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences},
VOLUME = {L-4/W2-2026},
YEAR = {2026},
PAGES = {209--214},
URL = {https://isprs-archives.copernicus.org/articles/L-4-W2-2026/209/2026/},
DOI = {10.5194/isprs-archives-L-4-W2-2026-209-2026}
}