1870-3453 1870-3453 S1870-34532020000100326 10.22201/ib.20078706e.2020.91.3418 Spain Mexico 00 00 2020 00 00 2020 91

2008 19 64-7 2016 31 69-76 2001 7 94-105 2015 13 361-72 1979 19 1129-43 1981 2 281-367 2010 19 221-30 1987 25 25 2012 83 429-36 2018 2020 139 1968 49 726-34 2009 27 467-73 2011 42 335-54 2013 116 182-5 2017 13 356 1991 67 171-90 1994 70 155-60 1995 1 51-62 1990 2008 36 557-64 1985 66 1204-10 2016 44 235-45 2013 132 145-55 1990 1986 55 59-73 1986 71 111-6 1987 68 332-43 QGIS Development Team 2019 R Core Team 2018 2012 20 473-5 2016 50 274-82 1967 37 317-50 2008 7 104-8 1983 219 1353-5 2012 1994 19 81-90 2013 2010 1999 43 171-82 1999 1983 121 133-8 1998 16 115-21 2000 18 59-63 2016