..............page:73-75,87
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Oscillation of Neutral Differential Equations
bat zhanli; leng xuebin; feng ting (editorial department; hebei normal university; shijiazhuang 050091; department of mathematics; liaocheq teachers university; linyi teachers teacher. school)
..............page:18-21
Vector Value Fuzzy Subgroup
yao bingxue; zhang yukun; ma wenhui (department of mathematics and system science; lisocheng teachers university; lisocheng 252059; department of mathematics; dezhou teachers college; linvi finance school)
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