@article{sant:yama:1993,
    Author = {Santner, Thomas J. and Yamagami, Shin},
    Title = {Invariant Small Sample Confidence Intervals for the Difference
            of Two Success Probabilities},
    Year = 1993,
    Journal = {Communications in Statistics, Part B -- Simulation and
              Computation},
    Volume = 22,
    Pages = {33--59},
    Keywords = {Algorithm; Binomial distribution}
}