---
res:
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Nikolay
      foaf_name: Milkov, Nikolay
      foaf_surname: Milkov
  dct_date: 1988^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/953-127361-1
  dct_language: other
  dct_publisher: 'Sofia: Nauka i Izkustvo@'
  dct_title: Tractatus Logico-Philosophicus@
...