In 2011, he gave a speech titled [http://pir.org/pdf/slippery_slope.pdf The Slippery Slope] at the [[ICANN Studienkreis]] #11. He was a panelist at "IP Address Allocation: Do wee need a Dual System?" panel at ICANN Studienkreis in 2005.<ref>[http://www.icann-studienkreis.net/conf/brussels2005/program.html icann-studienkreirs.net]</ref> | In 2011, he gave a speech titled [http://pir.org/pdf/slippery_slope.pdf The Slippery Slope] at the [[ICANN Studienkreis]] #11. He was a panelist at "IP Address Allocation: Do wee need a Dual System?" panel at ICANN Studienkreis in 2005.<ref>[http://www.icann-studienkreis.net/conf/brussels2005/program.html icann-studienkreirs.net]</ref> |