French aire dР В Р’В Р В’Р’В Р В Р’В’Р В’Р’В Р В Р’В Р В’Р’В’Р В Р’В’Р В’Р’В’Р В Р’В Р В’Р’В Р В Р’В’Р В’Р’В’Р В Р’В Р В’Р’В’Р В Р’В’Р В’Р’В’efficacite non nulle: translation to other languages