Thanks, kriskicksass, for your answer,
I understand the necessity to play that piece legato and...
... although I did not see any indication for the use of the pedal, I am not sure that a nice result can be achieved without it (even with the recommended fingering).
If that statement is not "too" wrong, then I would guess that the pedal should bring the legato effect to the playing.
Please, correct me if I am wrong !
Thanks again
Drooxy