Such a redefinition may involve, besides the loss of some benefits, the retention of other concessions, including, if deemed necessary, concessions granted for an indefinite period, and the introduction of new concessions that would be adapted
Des efforts spéciaux seront nécessaires si les cas limites incluent d’anciennes républiques soviétiques ou yougoslaves, en raison de ces indications ou de l’insuffisance des données.