1405-7743 1405-7743 S1405-77432020000300002 10.22201/fi.25940732e.2020.21.3.022 México 00 09 2020 00 09 2020 21 3

2020 136 2001 45 5-32 2017 103 1-11 2016 CRAN 2019 2005 27 8 8 861-74 2006 18 4 4 407-530 2017 2017 661-71 2019 125 181-94 1987 27 3 3 221-34 2017 1-5 2002 5 189-200 UCI 2020 Universidad de California 2019