3π and 4π meson production in np interactions at intermediate energiesA.P. Jerusalimov, A.V. Belyaev, V.P. Ladygin, V.N. Pechenov and Yu.A. TroyanEPJ Web Conf., 138 (2017) 07008DOI: https://doi.org/10.1051/epjconf/201713807008
