To cite SYNCSA in a publication use:

Debastiani V.J & Pillar V.D. 2012. SYNCSA — R tool for analysis of metacommunities based on functional traits and phylogeny of the community components. Bioinformatics 28: 2067-2068.

Corresponding BibTeX entry:

  @Article{,
    title = {S{YNCSA} - {R} tool for analysis of metacommunities based
      on functional traits and phylogeny of the community components},
    author = {V. Debastiani and V. Pillar},
    journal = {Bioinformatics},
    year = {2012},
    volume = {28},
    pages = {2067-2068},
  }