Claude Castelluccia A hierarchical mobility management scheme for IPv6. 305-309 1998 ISCC https://doi.org/10.1109/ISCC.1998.702525 https://doi.ieeecomputersociety.org/10.1109/ISCC.1998.702525 conf/iscc/1998 db/conf/iscc/iscc1998.html#Castelluccia98