Contribution of initial state interactions to the three-nucleon absorption of pions by 3He / G.Backenstoss,D.Bosnar,H.Breuer и др., 1995. - 11 p. - Текст : непосредственный.
Evidence of initial state interactions in multi-nucleon pion absorption / D.Androic,G.Backenstoss,D.Bosnar и др., 1996. - 8 p. - Текст : непосредственный.
Dominance of the two-nucleon mechanism in 16 O(pi +, pp) at 115 MeV / D.J.Mack,P.G.Roos,H.Breuer и др., 1991. - 56 p. - Текст : непосредственный.