PERFORMANCE BY DAVID MEDALLA (DIRECTOR OF THE LONDON BIENNALE) WITH ADAM NANKERVIS (DIRECTOR OF ‘another vacant space’ IN BERLIN) ON THE TERRACE OF THE GASOMETRO IN PORTO ALEGRE, BRAZIL, ON SEPTEMBER 13, 2013, AT 5 P.M., David Medalla: http://9bienalmercosul.art.br/pt/participante/24/ “Hoje pela manhã aconteceu um bate-papo super bacana com o artista