@article{AIHPA_1986__44_4_427_0, author = {Feldman, Joel and Rivasseau, Vincent}, title = {Existence of an instanton singularity in $\phi ^4_{\;3}$. {Euclidean} field theory}, journal = {Annales de l'I.H.P. Physique th\'eorique}, pages = {427--442}, publisher = {Gauthier-Villars}, volume = {44}, number = {4}, year = {1986}, zbl = {0606.41044}, language = {en}, url = {http://www.numdam.org/item/AIHPA_1986__44_4_427_0/} }