To cite the SiMRiv package in publications use:

Quaglietta L and Porto M (2018). SiMRiv: Individual-Based, Spatially-Explicit Simulation and Analysis of Multi-State Movements in River Networks and Heterogeneous Landscapes. R package version 1.0.3, https://CRAN.R-project.org/package=SiMRiv.

Corresponding BibTeX entry:

  @Manual{,
    title = {{SiMRiv}: Individual-Based, Spatially-Explicit Simulation
      and Analysis of Multi-State Movements in River Networks and
      Heterogeneous Landscapes},
    author = {Lorenzo Quaglietta and Miguel Porto},
    year = {2018},
    note = {R package version 1.0.3},
    url = {https://CRAN.R-project.org/package=SiMRiv},
  }