Paul Hoversten: Assembly (Nearly) Complete. Air & Space Magazine, 2011-05-01. [dostęp 2014-11-18]. Cytat: In fact, we're designed on the U.S. side to take four crew. The ISS design is actually for seven. We operate with six because first, we can get all our work done with six, and second, we don't have a vehicle that allows us to fly a seventh crew member. Our requirement for the new vehicles being designed is for four seats. So I don't expect us to go down in crew size. I would expect us to increase it. (ang.).
