no. 1
Addendum to “Rigorous absolute bounds for pion-pion scattering. II. Solving modified Szegö-Meiman problems”
Annales de l'I.H.P. Physique théorique, Tome 26 (1977) no. 1, pp. 107-108. 
@article{AIHPA_1977__26_1_107_0,
     author = {Auberson, G. and Epele, L. and Mahoux, G. and Sim\~ao, F. R. A.},
     title = {Addendum to ``Rigorous absolute bounds for pion-pion scattering. II. Solving modified Szeg\"o-Meiman problems''},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {107--108},
     publisher = {Gauthier-Villars},
     volume = {26},
     number = {1},
     year = {1977},
     mrnumber = {443638},
     language = {en},
     url = {archive.numdam.org/item/AIHPA_1977__26_1_107_0/}
}
Auberson, G.; Epele, L.; Mahoux, G.; Simão, F. R. A. Addendum to “Rigorous absolute bounds for pion-pion scattering. II. Solving modified Szegö-Meiman problems”. Annales de l'I.H.P. Physique théorique, Tome 26 (1977) no. 1, pp. 107-108. http://archive.numdam.org/item/AIHPA_1977__26_1_107_0/

[1] G. Auberson, L. Epele, G. Mahoux and F.R.A. Simão, Ann. Inst. Henri Poincaré, t. XXII, 1975, p. 317.

[2] G.N. Watson, A treatise on the theory of Bessel functions. Cambridge University Press, 1958, section 5.72. | MR 1349110

[3] G.N. Watson, Messenger of Mathematics, t. XLVII, 1918, p. 151.