New Century Cyclopedia of Names. Brief biographical information for persons, both historical and mythological. Articles cover various aspects of ancient civilization. Oxford Classical Dictionary. Scholarly dictionary with both brief entries and longer survey articles covering all aspects of the classical tradition.
Bibliographies accompany most articles.
Oxford Dictionary of Byzantium. Covers all facets of Byzantine history and civilization from the fourth to fifteenth centuries including the late Roman period. Bibliographies at the ends of the articles emphasize major works. Paulys Real-Encyclopaedie der Classischen Altertumswissenschaft. The standard scholarly work covering the whole field of the classics.