[1] ABU MURIEFAH F S,BUGEAUD Y.The Diophantine Equation x2+c=yn:A Brief Overview [J].Rev. Colomb. Mat.,2006,40(1):31-37.[2] SCHINZEL A,TIJDEMAN R.On the Equation ym=P(x) [J].Acta Arith.,1976,31(2):199-204.[3] LE Mao-hua.On the Diophantine Equation x2+p2=yn [J].Publ. Math. Debercen,2003,63(1/2):67-78.[4] BILU Y,HANROT G,VOUTIER P M.Existence of Primitive Divisors of Lucas and Lehmer Numbers [J].J. Reine Angew. Math.,2001,539:75-122.[5] MORDELL L J.Diophantine Equations [M].London:Academic Press,1969.