@conference {899, title = {SOSA-SHACL: Shapes Constraint for the Sensor, Observation, Sample, and Actuator Ontology}, booktitle = {The 10th International Joint Conference on Knowledge Graphs, IJCKG 2021, December 6-8, 2021, Virtual Event, Thailand}, year = {2021}, publisher = {ACM}, organization = {ACM}, author = {Rui Zhu and Cogan Shimizu and Shirly Stephen and Lu Zhou and Ling Cai and Gengchen Mai and Krzysztof Janowicz and Mark Schildhauer and Pascal Hitzler} }