<sect1 id="chapter-number"> <sect1info> <authorgroup> <author ><firstname >-</firstname > <surname >-</surname > </author> <othercredit role="translator" ><firstname >Federico</firstname ><surname >Zenith</surname ><affiliation ><address ><email >zenith@chemeng.ntnu.no</email ></address ></affiliation ><contrib >Traduzione della documentazione</contrib ></othercredit ><othercredit role="translator" ><firstname >Giovanni</firstname ><surname >Bacci</surname ><contrib >Traduzione della documentazione</contrib ></othercredit > </authorgroup> </sect1info> <title >Numerazione dei capitoli</title> <indexterm ><primary >numerazione dei capitoli</primary ></indexterm> <para >Da scrivere</para> </sect1>