To cite package 'spikeSlabGAM' in publications, please use one of the following articles. The JSS (2011) article focuses more on implementation, while theoretical details, simulation results and case studies are published in JASA (2012):

Scheipl F (2011). “spikeSlabGAM: Bayesian Variable Selection, Model Choice and Regularization for Generalized Additive Mixed Models in R.” Journal of Statistical Software, 43(14), 1–24. doi:10.18637/jss.v043.i14.

Scheipl F, Ludwig F, Thomas K (2012). “Spike-and-Slab Priors for Function Selection in Structured Additive Regression Models.” Journal of the American Statistical Association, 107(500), 1518–1532. http://dx.doi.org/10.1080/01621459.2012.737742.

Corresponding BibTeX entries:

  @Article{,
    title = {{spikeSlabGAM}: {B}ayesian Variable Selection, Model
      Choice and Regularization for Generalized Additive Mixed Models
      in {R}},
    author = {Fabian Scheipl},
    journal = {Journal of Statistical Software},
    year = {2011},
    volume = {43},
    number = {14},
    pages = {1--24},
    doi = {10.18637/jss.v043.i14},
  }

  @Article{,
    title = {Spike-and-Slab Priors for Function Selection in Structured
      Additive Regression Models},
    author = {Fabian Scheipl and Fahrmeir Ludwig and Kneib Thomas},
    journal = {Journal of the American Statistical Association},
    year = {2012},
    volume = {107},
    number = {500},
    pages = {1518--1532},
    url = {http://dx.doi.org/10.1080/01621459.2012.737742},
  }