[en] The principal techniques employed in obtaining, through momentum space integrations, double folded potentials for the analysis of nucleus--nucleus interactions are summarized. The primary emphasis is on numerical accuracy; therefore, no significant effort was made to minimize computer time other than to cast the problem in momentum space. The code RHOQ obtains the density distributions in momentum space, while FINRAN utilizes these results along with a nucleon--nucleon interaction in momentum space to obtain the local double folded potential in coordinate space