@article{1103921411,
author = {Bros, J. and Iagolnitzer, D.},
title = {Unitarity equations and structure of the $S$-matrix at the $m$-particle threshold in a theory with pure $m\rightarrow m$ interaction},
journal = {Comm. Math. Phys.},
volume = {83},
number = {1},
year = {1982},
pages = { 197-219},
language = {en},
url = {http://dml.mathdoc.fr/item/1103921411}
}
Bros, J.; Iagolnitzer, D. Unitarity equations and structure of the $S$-matrix at the $m$-particle threshold in a theory with pure $m\rightarrow m$ interaction. Comm. Math. Phys., Tome 83 (1982) no. 1, pp. 197-219. http://gdmltest.u-ga.fr/item/1103921411/