\backcite {Crocker:1982:StFoAR, CrockerOver:2008:AuBNSy}{{16}{6}{Item.4}}
\backcite {Crocker:1982:StFoAR, CrockerOver:2008:AuBNSy}{{16}{6}{Item.4}}
\backcite {Mockapetris:1987:CoFa}{{16}{6}{Item.4}}
\backcite {BernersFielIrviMasi:1998:UnReId}{{16}{6}{Item.4}}
\backcite {BernersFielIrviMasi:1998:UnReId}{{16}{6}{table.6.1}}