@article{1103904170,
author = {Coleman, Sidney and Thun, H. J.},
title = {On the prosaic origin of the double poles in the sine-Gordon $S$-matrix},
journal = {Comm. Math. Phys.},
volume = {58},
number = {1},
year = {1978},
pages = { 31-39},
language = {en},
url = {http://dml.mathdoc.fr/item/1103904170}
}
Coleman, Sidney; Thun, H. J. On the prosaic origin of the double poles in the sine-Gordon $S$-matrix. Comm. Math. Phys., Tome 58 (1978) no. 1, pp. 31-39. http://gdmltest.u-ga.fr/item/1103904170/