Order:
  1. S. B. DIAGNE "Boole". [REVIEW]J. W. Van Evra - 1991 - History and Philosophy of Logic 12 (2):245.
  2. T. HAILPERIN "Boole's logic and probability". [REVIEW]J. W. van Evra - 1988 - History and Philosophy of Logic 9 (1):115.