Verma S P, Cruz-Huicochea R. Alternative approach for precise and accurate Student´s t critical values and application in geosciences. JIGE [Internet]. 2013 Apr. 15 [cited 2024 Nov. 7];39(1):31-56. Available from: https://doi.org/10.5209/rev_JIGE.2013.v39.n1.41747