@article{1103840010,
author = {Langbein, Werner},
title = {Zur physikalischen Interpretation manifest kovarianter Darstellungen der inhomogenen Lorentzgruppe zur Masse Null},
journal = {Comm. Math. Phys.},
volume = {4},
number = {1},
year = {1967},
pages = { 73-87},
language = {de},
url = {http://dml.mathdoc.fr/item/1103840010}
}
Langbein, Werner. Zur physikalischen Interpretation manifest kovarianter Darstellungen der inhomogenen Lorentzgruppe zur Masse Null. Comm. Math. Phys., Tome 4 (1967) no. 1, pp. 73-87. http://gdmltest.u-ga.fr/item/1103840010/