Please cite the eba package by the following reference:

Wickelmaier, F. and Schmid, C. (2004). A Matlab function to estimate choice model parameters from paired-comparison data. Behavior Research Methods, Instruments, and Computers, 36(1), 29-40.

Corresponding BibTeX entry:

  @Article{,
    title = {A {M}atlab function to estimate choice model parameters
      from paired-comparison data},
    author = {Florian Wickelmaier and Christian Schmid},
    journal = {Behavior Research Methods, Instruments, and Computers},
    year = {2004},
    volume = {36},
    number = {1},
    pages = {29--40},
  }