1405-5546 1405-5546 S1405-55462020000301353 10.13053/cys-24-3-3775 Kazakhstan Kazakhstan Mexico 00 09 2020 00 09 2020 24 3 1353 1364

1 2020 2 2001 180–189 3 1992 46 175–185 4 2004 556–561 5 2003 6 2001 45 5–32 7 1984 8 2019 334–337 9 1879 10 2010 19–28 11 2015 8 366–370 12 2004 149–152 13 2018 55 04007 14 2006 63 1 1 3–42 15 1921 31 121 121 124–126 16 2005 573–580 17 2019 57–97 18 1954 10 2-3 2-3 146–162 19 2019 310–315 20 2013 112 21 1972 28 1 1 11–21 22 2019 abs/1902.00972 23 2015 24 2018 4921–4928 25 1994 1 209–229 26 1957 1 4 4 309–317 27 2014 55–60 28 2019 229–244 29 2018 30 1995 3 1–24 31 2011 12 2825–2830 32 2004 33 1968 63 322 322 552–557 34 2008 20 33–53 35 1948 27 3 3 379–423 36 1967 80 4 4 651–653 37 2016 507–514 38 2018 Brussels, Belgium 197–207 39 2015 2015 2268–2274 40 1999 41 2014