[1]Airault H.  Rational solution of Painlevé equation. Studies in Appl Math, 1979, 61: 31-53

[2]Adler M, Moser J. On a class of polynomials connected with the Korteweg de Vries equation. Communications in Math Physics, 1979, 61: 1-30

[3]Baesch A.  Zur Werteverteilung der Painlevéschen Transzendenten.Berlin: M.Sc.thesis (Diplomarbeit) in Technische Universit
[AKa¨D]t,1992

[4]Gromak V I.  The first higher order Painlevé equation.Differential Equations, 1999,35(1):  1-5

[5]Gromak V I,He Y. On the solutions of the  second Painlevé equation  of higher order.Proceed of Math Inst of Belarus National Academy of Sci,2000,4:37-48

[6]何育赞，萧修治。代数体函数与常微分方程。北京：科学出版社，1988

[7]Hinkkanen A,Laine I. Solutions of the first and second Painlevé  equations are meromorphic.J Anal Math,  1999, 79: 345-377

[8]Laine I.  Nevanlinna Theory and Complex Differential Equations.Berlin：W.de Gruyter,1993

[9]Li Yezhou, Feng Shaoji.On hyper order of meromorphic solutions of first order algebraic differential equations. Acta Mathematica Scientia, 2001,21B(3): 383-390

[10]Yezhou Li,  Yuzan He. On analytic properties of higherorder analogue of the second Painlevé equation. J Math Phys, 2002, 43:1 106-1115

[11]Painlevé P.  Lecons sur  la Théorie   Analytique des E〖DD(-*3〗′ 〖DD)quations Différentielles.  Paris: Hérman, 1897

[12]Schubart H. Zur werteverteilung der Painlevéschen transzendenten. Arch math, 1996, 7: 284-290

[13]Shimomura S.  Value distribution of Painlevé transcendents of the first and second kind.  Journal D'analyse ma thématique , 2000, 82: 333-346

[14]Steinmetz N.  Value distribution of the Painlevé equation. Israel J Math, 2002, 128:29-52

[15]Wittich H.  Neuere Untersuchungen
[AKu¨D]ber Eindeutige Analytische Funktionen. Berlin:  SpringerVerlag, 1968