1. ACS: American community survey. United States Census Bureau.
https://www.census.gov/programs-surveys/acs
2. Agrawal, R., Imieliński, T., Swami, A.: Mining association rules between sets of items in large databases. In: Proceedings of the 1993 ACM SIGMOD International Conference on Management of Data - SIGMOD 1993, pp. 207–216, June 1993
3. Agrawal, R., Srikant, R.: Fast algorithms for mining association rules. In: Proceedings of the 20th International Conference on Very Large Data Bases, VLDB, Santiago, Chile, pp. 487–499, September 1994
4. BRFSS: Behavioral risk factor surveillance system. Centers for Disease Control and Prevention (CDC).
https://www.cdc.gov/brfss/index.html
5. Census: US census (1990) data set. UCI Machine Learning Repository (2017).
https://archive.ics.uci.edu/ml/datasets/US+Census+Data+%281990%29