Propagation and interaction of singularities in nonlinear hyperbolic problemsBeals, Michael · First published 1989Open the Tome
Microlocal Analysis and Nonlinear WavesMichael Beals Richard B. Melrose · First published 2011Open the Tome
Microlocal analysis and nonlinear wavesBeals, Michael, Richard B. Melrose, Jeffrey Rauch · First published 1991Open the Tome