Аннотация
The contributions of various mechanisms to the production of the final nucleus 12 C in the reaction 13 C( 3 He, α ) 12 C are estimated. These are neutron stripping and the transfer of the heavy cluster 9 Be in the pole approximation or via a sequential transfer of virtual 8 Be and a neutron. It is shown that the sequential mechanism of heavy-cluster transfer must be taken into account in order to describe correctly experimental data over the whole angular range.