Reissig, M. Weakly hyperbolic equations with time degeneracy in Sobolev spaces. Wiley.
Chicago Style (17th ed.) CitationReissig, Michael. Weakly Hyperbolic Equations with Time Degeneracy in Sobolev Spaces. Wiley.
MLA (9th ed.) CitationReissig, Michael. Weakly Hyperbolic Equations with Time Degeneracy in Sobolev Spaces. Wiley.
Warning: These citations may not always be 100% accurate.