GABRIEL, E.; ROWLINGSON, B. S.; DIGGLE, P. J. stpp: An R Package for Plotting, Simulating and Analyzing Spatio-Temporal Point Patterns. Journal of Statistical Software, [S. l.], v. 53, n. 2, p. 1–29, 2013. DOI: 10.18637/jss.v053.i02. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v053i02. Acesso em: 21 may. 2022.