Existence of Eigenvalues of a Linear Operator Pencil in a Curved Waveguide - Localized Shelf Waves on a Curved Coast. - E. R. Johnson; Michael Levitin; Leonid Parnovski (SIAM J. Math. Anal., 2006)

Subsonic to Supersonic Nozzle Flows. - O. Kryeziu; E. R. Johnson (SIAM J. Appl. Math., 2013)