Components of an algebraic solution of the multichannel problem of   low-energy n-${}^{12}$C scattering plus sub-threshold (${}^{13}$C) states
  The effects of components in an assumed model interaction potential, as well as of the order to which its deformation is taken, upon resonances in the low-energy cross sections and upon sub-threshold bound states of the compound nucleus (${}^{13}$C) are discussed. 
K Amos, L.Canton, G.Pisent, J. P.Svenne, and D van der Knijff