 Wend , David ( 1998 ) . " Nerva ( 96 – 98 A.D. ) " . De Imperatoribus Romanis . Retrieved 2007 @-@ 08 @-@ 11 . 
 Wend , David ( 1998 ) . " Nerva ( 96 – 98 A.D. ) " . De Imperatoribus Romanis . Retrieved 2007 @-@ 08 @-@ 11 . 
Wend , David ( 1998 ) . " Nerva ( 96 – 98 A.D. ) " . De Imperatoribus Romanis . Retrieved 2007 @-@ 08 @-@ 11 .