1405-5546 1405-5546 S1405-55462017000200275 10.13053/cys-21-2-2737 Mexico Spain 00 06 2017 00 06 2017 21 2 275 292

1 1998 2 1997 56–67 3 2001 14 ^sComputing Supplement ^sComputing Supplement Computing Supplement 1–28 4 2007 2007 33–36 5 2008 6 2009 C.A. 73–80 7 2012 38–47 8 2011 44 8 8 409– 417 9 2012 216 176–195 10 1999 46–60 11 1992 1 164–215 12 1995 189–ff 13 2008 14 1–12 14 2013 18–26 15 2014 76 4 4 181–201 16 1998 96–109 17 1992 39 2 2 253–280 18 2010 429–438 19 1998 14 240– 256 20 1999 21 1997 22 2000 57–61 23 2013 384–391 24 2004 66 370–397 25 2000 6 4 4 335–345 26 2003 1 866–869 27 2014 1355–1362 28 2013 28 3 3 468–478 29 1973 16 6 6 372–378 30 2000 25 2 2 269–285 31 1990 32 1993 51–64 33 2000 62 129–164 34 1994 E77-D 9 9 35 2014 97 12 12 3244–3247 36 1987 21 4 4 163– 169 37 2013 75 189–207 38 1991 39 2001 33 8 8 571– 579 40 2004 327–332 41 1980 12 4 4 73–82 42 2003 27 931–942 43 2004 259–274 44 2011 73 296–310 45 1966 13 4 4 471–494 46 1990 47 1985 121–130 48 2012 458–473 49 2005 24 61–81 50 1987 21 4 4 153–162 51 1995 57 1 1 13–19 52 1991 53–62 53 1993 58–67 54 2011 55 2012 74 61–74 56 2010 29 5 5 1595–1604 57 1992 11 3 3 201–227 58 2006 176 1379–1394 59 2002 121– 128