A Comparison of IPv6-over-IPv4 Tunnel Mechanisms. - Sander Steffann; Iljitsch van Beijnum; Rick van Rein (RFC, 2013)

Stateless IP/ICMP Translation for IPv6 Internet Data Center Environments (SIIT-DC): Dual Translation Mode. - Tore Anderson; Sander Steffann (RFC, 2016)