---
res:
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Yingli
      foaf_name: Kang, Yingli
      foaf_surname: Kang
  - foaf_Person:
      foaf_givenName: Eckhard
      foaf_name: Steffen, Eckhard
      foaf_surname: Steffen
      foaf_workInfoHomepage: http://www.librecat.org/personId=15548
  bibo_volume: 339
  dct_date: 2016^xs_gYear
  dct_language: eng
  dct_title: The chromatic spectrum of signed graphs@
...