[FIG(quote)[
[FIGCAPTION[
[1] [CITE[Open Publication Structure (OPS) 2.0.1 v1.0]]
([TIME[2015-09-08 04:50:12 +09:00]] 版)
<http://www.idpf.org/epub/20/spec/OPS_2.0_latest.htm#Section1.3.7>
]FIGCAPTION]

> application/x-dtbncx+xml	DTBook specification	The NCX

]FIG]