Song, X., & Wang, Z. Singularities of Indefinite Hypersurfaces and Indefinite Surfaces along Timelike Curves in Nullcone with Index Two. Wiley.
Chicago Style (17th ed.) CitationSong, Xue, and Zhigang Wang. Singularities of Indefinite Hypersurfaces and Indefinite Surfaces Along Timelike Curves in Nullcone with Index Two. Wiley.
MLA (9th ed.) CitationSong, Xue, and Zhigang Wang. Singularities of Indefinite Hypersurfaces and Indefinite Surfaces Along Timelike Curves in Nullcone with Index Two. Wiley.
Warning: These citations may not always be 100% accurate.