Translate the following English sentence to French:
"To this end, there are still issues to be dealt with, such as the level of openness of the market, the separation of the operators of transmission networks from the production systems, the guarantee of non-discriminatory access in the application of prices."
Il s'ensuit des matières en attente, comme le niveau d'ouverture du marché, la dissociation entre l'opérateur de système de transport et le producteur/distributeur, la garantie d'une tarification d'accès non discriminatoire.