"","CR","Freq","cluster"
"1","STEARNS S. C., 1992, EVOLUTION LIFE HIST",27,"A1"
"2","ROFF DEREK A., 1992",24,"A1"
"3","DRENT RH, 1980, ARDEA, V68, P225",15,"A1"
"4","CLUTTON-BROCK T. H., 1991, EVOLUTION PARENTAL C",12,"A1"
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"6","LINDEN M, 1989, TRENDS ECOL EVOL, V4, P367, DOI 10.1016/0169-5347(89)90101-8",12,"A1"
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"8","LACK D., 1968, ECOLOGICAL ADAPTATIO",11,"A1"
"9","LESSELLS C.M., 1991, P32",11,"A1"
"10","SHELDON BC, 1996, TRENDS ECOL EVOL, V11, P317, DOI 10.1016/0169-5347(96)10039-2",11,"A1"
"11","STEARNS S. C., 1992, EVOLUTION LIFE HIST",36,"A2"
"12","BELSKY J, 1991, CHILD DEV, V62, P647, DOI 10.2307/1131166",30,"A2"
"13","CHARNOV ERIC L., 1993, P1",25,"A2"
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"15","KAPLAN H, 2000, EVOL ANTHROPOL, V9, P156, DOI 10.1002/1520-6505(2000)9:4<156::AID-EVAN5>3.3.CO;2-Z",22,"A2"
"16","HURTADO A. M., 1996, ACHE LIFE HIST ECOLO",21,"A2"
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"18","HILL K, 1999, ANNU REV ANTHROPOL, V28, P397, DOI 10.1146/ANNUREV.ANTHRO.28.1.397",16,"A2"
"19","ROFF DEREK A., 1992",15,"A2"
"20","BOGIN B., 1999, PATTERNS HUMAN GROWT",13,"A2"
"21","ROFF DEREK A., 1992",29,"A3"
"22","STEARNS S. C., 1992, EVOLUTION LIFE HIST",28,"A3"
"23","ABRAMS PA, 1996, AM NAT, V147, P381, DOI 10.1086/285857",24,"A3"
"24","CHARLESWORTH B., 1980, EVOLUTION AGE STRUCT",16,"A3"
"25","ARENDT JD, 1997, Q REV BIOL, V72, P149, DOI 10.1086/419764",14,"A3"
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"27","STEARNS SC, 1986, EVOLUTION, V40, P893, DOI 10.1111/J.1558-5646.1986.TB00560.X",13,"A3"
"28","FISHER R. A., 1930, GENETICAL THEORY NAT",12,"A3"
"29","STEARNS SC, 1976, Q REV BIOL, V51, P3, DOI 10.1086/409052",12,"A3"
"30","ATKINSON D, 1994, ADV ECOL RES, V25, P1, DOI 10.1016/S0065-2504(08)60212-3",10,"A3"
"31","ROFF DEREK A., 1992",23,"A4"
"32","STEARNS S. C., 1992, EVOLUTION LIFE HIST",23,"A4"
"33","REZNICK D, 1985, OIKOS, V44, P257, DOI 10.2307/3544698",16,"A4"
"34","SMITH CC, 1974, AM NAT, V108, P499, DOI 10.1086/282929",16,"A4"
"35","ROFF D. A., 2002, LIFE HIST EVOLUTION",12,"A4"
"36","GADGIL M, 1970, AMERICAN NATURALIST, V104, P1, DOI 10.1086/282637",10,"A4"
"37","WILLIAMS GC, 1966, AM NAT, V100, P687, DOI 10.1086/282461",10,"A4"
"38","HOULE D, 1992, GENETICS, V130, P195",9,"A4"
"39","MCGINLEY MA, 1987, AM NAT, V130, P370, DOI 10.1086/284716",9,"A4"
"40","PARKER GA, 1986, AM NAT, V128, P573, DOI 10.1086/284589",9,"A4"
"41","BURNHAM K. P., 1998, MODEL SELECTION INFE",13,"A5"
"42","LEBRETON JD, 1992, ECOL MONOGR, V62, P67, DOI 10.2307/2937171",12,"A5"
"43","STEARNS S. C., 1992, EVOLUTION LIFE HIST",12,"A5"
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"45","CASWELL H, 2001, MATRIX POPULATION MO",9,"A5"
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"50","CAM E, 2002, AM NAT, V159, P96, DOI 10.1086/324126",7,"A5"
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"71","STEARNS S. C., 1992, EVOLUTION LIFE HIST",17,"B3"
"72","ROFF DEREK A., 1992",15,"B3"
"73","ROFF D. A., 2002, LIFE HIST EVOLUTION",11,"B3"
"74","BELL G, 1980, AM NAT, V116, P45, DOI 10.1086/283611",7,"B3"
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"83","HURTADO A. M., 1996, ACHE LIFE HIST ECOLO",9,"B4"
"84","STEARNS S. C., 1992, EVOLUTION LIFE HIST",8,"B4"
"85","BOGIN B, 1997, YEARB PHYS ANTHROPOL, V40, P63",6,"B4"
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"98","JONASON PK, 2010, PERS INDIV DIFFER, V49, P611, DOI 10.1016/J.PAID.2010.05.031",15,"B5"
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"100","JONES DN, 2011, PERS INDIV DIFFER, V51, P679, DOI 10.1016/J.PAID.2011.04.011",13,"B5"