TY - RPRT TI - Multilevel Methodology for Simulation of Spatio-Temporal Systems with Heterogeneous Activity; Application to Spread of Valley Fever Fungus AU - Rajanikanth Jammalamadaka PY - 2009 DO - 10.3133/ofr20091241 UR - https://pubs.usgs.gov/publication/ofr20091241 ID - ofr20091241 ER -