@article{AIHPA_1983__38_1_37_0,
     author = {Manoukian, Edward B.},
     title = {Lower bounds to {Feynman} integrals and class $H^n$},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {37--47},
     publisher = {Gauthier-Villars},
     volume = {38},
     number = {1},
     year = {1983},
     mrnumber = {700698},
     zbl = {0515.46076},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1983__38_1_37_0/}
}