1. Data Assimilation and Online Parameter Optimization in Groundwater Modeling Using Nested Particle Filters. Issue 11 (25th November 2019) Authors: Ramgraber, M.; Albert, C.; Schirmer, M. Journal: Water resources research Issue: Volume 55:Issue 11(2019) Page Start: 9724 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗