[1] Open Publication Structure (OPS) 2.0.1 v1.0 (2015-09-08 04:50:12 +09:00 版) <http://www.idpf.org/epub/20/spec/OPS_2.0_latest.htm#Section1.3.7>
OEBPS 1.2 specification Deprecated; Used for Basic or Extended OEBPS 1.0.1 and 1.2 Documents