To cite hmer in publications use:

Iskauskas A, Vernon I, Goldstein M, Scarponi D, McCreesh N, McKinley TJ, White RG (2024). “Emulation and History Matching Using the hmer Package.” Journal of Statistical Software, 109(10), 1–48. doi:10.18637/jss.v109.i10.

Corresponding BibTeX entry:

    title = {Emulation and History Matching Using the {hmer} Package},
    author = {Andrew Iskauskas and Ian Vernon and Michael Goldstein and
      Danny Scarponi and Nicky McCreesh and Trevelyan J. McKinley and
      Richard G. White},
    journal = {Journal of Statistical Software},
    year = {2024},
    volume = {109},
    number = {10},
    pages = {1--48},
    doi = {10.18637/jss.v109.i10},