@misc{miscda8a636f,
title   = {Welcome to the 12th edition of the ACM/IFIP/USENIX International Middleware Conference. [Prefácio]},
author = {Kermarrec, Anne-Marie and Kon, Fábio},
year = {2011},
publisher = {Springer},
booktitle   = {ACM/IFIP/USENIX international Conference on Middleware}
}