@TechReport{Blackburn_et_al:1996,
      AUTHOR = {Blackburn, Patrick and Jaspars, Jan and de Rijke, Maarten},
      TITLE = {Reasoning about Changing Information},
      YEAR = {1996},
      MONTH = {September},
      NUMBER = {81},
      PAGES = {25},
      ADDRESS = {Saarbrücken},
      TYPE = {CLAUS-Report},
      INSTITUTION = {Universität des Saarlandes},
      URL = {ftp://ftp.coli.uni-sb.de/pub/coli/claus/claus81.ps},
      ABSTRACT = {The purpose of these notes is two-fold: (i) to give a reasonably self-contained introduction to a particular approach to theory change, known as the Alchourron-Gardenfors-Makinson (AGM) approach, and to discuss some of the alternatives and extensions that have been proposed to it over the past few years; (ii) to relate the AGM approach to other 'information-oriented' branches of logic, including intuitionistic logic, non-monotonic reasoning, verisimilitude, and modal and dynamic logic.},
      ANNOTE = {COLIURL : Blackburn:1996:RAC.pdf Blackburn:1996:RAC.ps}
}