Zolkowski, Jeshanah Jean, et al. “Monitoring Carbon Dioxide in the Atmosphere and Heavy Metals in Runoff Water at Active Landfill, Retired Landfill, and Forest Control Sites to Determine Remediation Effectiveness”. Proceedings of the Wisconsin Space Conference, vol. 1, no. 1, Jan. 2017, doi:10.17307/wsc.v1i1.173.