@misc{indiciaef8c913f64e9b, title = {First-Order System Least-Squares for Second-Order Elliptic Problems with Discontinuous Coefficients}, author = {Manteuffel, Thomas A. and McCormick, Stephen F. and Starke, Gerhard}, year = {1996}, url = {https://ntrs.nasa.gov/citations/19970006604}, note = {Source identifier: 19970006604} }