0034-7426 0034-7426 S0034-74262019000300113 10.15446/recolma.v53nsupl.84010 Germany USA China 00 12 2019 00 12 2019 53 113 141

[1] 1811.01215 [2] 1807.07630 [3] 2018 1711.00884 [4] 1998 199 203-42 [5] 2017 1501.00426v2 [6] 2017 166 537-71 [7] 1964 5 7 7 848-61 [8] 1967 [9] 1999 3 627-70 [10] 2014 10 100 100 31 [11] 2013 [12] [13] 1972 24 46-58 [14] 1808.10814