Invariant classification of vacuum PP-waves

MLA

Milson, Robert, et al. Invariant Classification of Vacuum PP-Waves. 2012. EBSCOhost, https://doi.org/10.1063/1.4791691.

APA

Milson, R., McNutt, D., & Coley, A. (2012). Invariant classification of vacuum PP-waves. https://doi.org/10.1063/1.4791691

Chicago

Milson, Robert, David McNutt, and Alan Coley. 2012. “Invariant Classification of Vacuum PP-Waves.” doi:10.1063/1.4791691.