Extend chronology for serials

[nichtich]

See https://gist.github.com/nichtich/b530c5a3f627a4f5f25245b6eadbae1f for a suggestion (in German).

[nichtich]

See http://cklee.github.io/ecpo/ecpo.html#object-properties for ECPO.

[nichtich]

A simple solution of detailed enumeration and chronology information is not available is to put it in a free text subfield about. More specific fields intervals, points and embargo can be added if available:

{
  "chronology": {
    "about": "...",
    "intervals": [ ],
    "points": [ ],
    "embargo": { "period": -1, "unit": "volume" }
  }
}

[nichtich]

This requires more discussion, so it will better be part of DAIA 1.1.0 instead of DAIA 1.0.0. DAIA 0.9.10 contains the free text chronology field about to start with unstructured data.