@misc{indiciae3eb561243edd, title = {Supporting user-defined granularities in a spatiotemporal conceptual model}, author = {V. Khatri and S. Ram and R.T. Snodgrass and G. M. O’Brien}, year = {2002}, doi = {10.1023/a:1015868307494}, url = {https://pubs.usgs.gov/publication/70023843}, note = {Source identifier: 70023843} }