@article{1103860460,
author = {Brander, O.},
title = {On the number of solutions to a crossing symmetric neutral $\pi-\pi $ model},
journal = {Comm. Math. Phys.},
volume = {40},
number = {1},
year = {1975},
pages = { 97-124},
language = {en},
url = {http://dml.mathdoc.fr/item/1103860460}
}
Brander, O. On the number of solutions to a crossing symmetric neutral $\pi-\pi $ model. Comm. Math. Phys., Tome 40 (1975) no. 1, pp. 97-124. http://gdmltest.u-ga.fr/item/1103860460/