In article 11 of FIBA rules, it says: "The location of a player is determined by where he is touching the floor. While he is airborne, he retains the same status he had when he last touched the floor."
How is this article interpreted? Does the player have to come back into the court with both feet before he is considered in-bounds? or if one foot is in the court and the other still in the air - is that enough to be in-bounds?
A: I believe you answered your own question by quoting Article 11 from the rulebook. Since, in the case you describe below, the player is no longer airborne, and, as you say he is "back into the court with one foot," and is "no longer touching out of bounds" he has established inbounds and is considered to be inbounds. Nowhere in Article 11 does it say that both feet have to be touching inbounds. So, yes, one foot inbounds on the court, with the other foot in the air, is enough to establish the player inbounds.