http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Linear representations of the Lorentz group
[by] M. A. Naimark. Translated by Ann Swinfen and O. J. Marstrand. Translation edited by H. K. Farahat.
International series of monographs in pure and applied mathematics ; v. 63