@article{Berg-Cross2020, author = "Gary Berg-Cross and Charles Vardeman", title = "{Semantic Harmonization: Illustrating Harmonization Levels}", year = "2020", month = "1", url = "https://esip.figshare.com/articles/dataset/Semantic_Harmonization_Illustrating_Harmonization_Levels/11536476", doi = "10.6084/m9.figshare.11536476.v1" }