To cite package qualmap in publications, please use:

Prener, C. Digitizing and Visualizing Sketch Map Data: A Semi-Structured Approach to Qualitative GIS. Cartographica 56(4), 267-283. https://doi.org/10.3138/cart-2020-0030

Corresponding BibTeX entry:

  @Article{,
    author = {{Prener} and {Christopher}},
    title = {{Digitizing and Visualizing Sketch Map Data: A
      Semi-Structured Approach to Qualitative GIS}},
    year = {2021},
    journal = {{Cartographica}},
    doi = {10.3138/cart-2020-0030},
    url = {https://doi.org/10.3138/cart-2020-0030},
    volume = {56},
    number = {4},
    pages = {550},
  }