Appel Neto, Edemar, Ismael Canabarro Barbosa, Enio Júnior Seidel, e Marcelo Silva de Oliveira. 2018. “SPATIAL DEPENDENCE INDEX FOR CUBIC, PENTASPHERICAL AND WAVE SEMIVARIOGRAM MODELS”. Boletim De Ciências Geodésicas 24 (1). https://revistas.ufpr.br/bcg/article/view/58640.