Yu-ming, C., & Jin-fa, C. (2009). Sufficient and Necessary Conditions for Oscillation of <inline-formula> <graphic file="1029-242X-2009-892936-i1.gif"/></inline-formula>th-Order Differential Equation with Retarded Argument. SpringerOpen.
Chicago Style (17th ed.) CitationYu-ming, Chu, and Cheng Jin-fa. Sufficient and Necessary Conditions for Oscillation of <inline-formula> <graphic File="1029-242X-2009-892936-i1.gif"/></inline-formula>th-Order Differential Equation with Retarded Argument. SpringerOpen, 2009.
MLA (9th ed.) CitationYu-ming, Chu, and Cheng Jin-fa. Sufficient and Necessary Conditions for Oscillation of <inline-formula> <graphic File="1029-242X-2009-892936-i1.gif"/></inline-formula>th-Order Differential Equation with Retarded Argument. SpringerOpen, 2009.