00325nam a22000977a 4500020001800000082001800018100001900036245012100055260004000176300001100216  a9783852187143  a617.809 2 BAL  aBall, Geoffrey  aNo More Laughing at the Deaf Boy : ba Technological Adventure between Silicon Valley and the Alps /c	Geoffrey Ball  aInnsbruck : bHaymon Verlag, c2011  a352 p.