Links:
[1] http://coac.arquitectes.cat/en/content/espai-bar%C3%A7a-jury-selects-proposal-hok-tac-arquitectes-new-palau-blaugrana
[2] http://www.fcbarcelona.com/club/detail/article/espai-barca-jury-selects-proposal-by-hok-tac-arquitectes-for-the-new-palau-blaugrana
[3] http://coac.arquitectes.cat/en/javascript%3Ahistory.back%281%29