Аннотация:The inclusive pion spectrum from the reaction $^{3}\mathrm{He}$+$^{6}\mathrm{Li}$\ensuremath{\rightarrow}${\ensuremath{\pi}}^{\ensuremath{-}}+X$ at 910 MeV was measured at 0\ifmmode^\circ\else\textdegree\fi{} with moderate resolution up to the kinematic limit of the two-body final-state reaction. A first analysis shows that the production of high-energy pions cannot be explained by the $\mathrm{NN}\ensuremath{\rightarrow}\mathrm{NN}\ensuremath{\pi}$ process using conventional nucleon momentum distributions. At the end of the spectrum a clear deviation from the general falloff slope is observed and attributed to the doubly coherent reaction $^{3}\mathrm{He}$+$^{6}\mathrm{Li}$\ensuremath{\rightarrow}$^{9}\mathrm{C}$+${\ensuremath{\pi}}^{\ensuremath{-}}$.