To cite scoring in publications use:

Merkle, E. C. & Steyvers, M. (2013). Choosing a strictly proper scoring rule. Decision Analysis, 10, 292-304.

Corresponding BibTeX entry:

  @Article{,
    title = {Choosing a Strictly Proper Scoring Rule},
    author = {Edgar C. Merkle and Mark Steyvers},
    journal = {Decision Analysis},
    year = {2013},
    volume = {10},
    pages = {292--304},
  }