
1 
WU Hong ping (Department of Mathematics, Northwest Normal University, Lanzhou 730070,China);The existence of positive solution of an elastic beam equation[J];Pure and Applied Mathematics;200104 
2 
ZHAO Hong(School of Mathematics,Changchun Normal University,Changchun 130032,China);Existence of solutions for fourthorder boundary value problems[J];Journal of Changchun University;200712 
3 
WAN Aying1,2,XU Xiaojie2,JIANG Daqing2(1Department of Mathematics,Hulunbeier College,Hailaer 021008,China;2Department of Mathematics,Northeast Normal University,Changchun 130024,China);Positive solutions to a singular nonlinear fourth order two point boundary value problem[J];Journal of Northeast Normal University (Natural Science Edition);200303 
4 
ZHU Xiaojie~1,QIAO Xinghao~2,ZHAO Yurong~1 (1.Dept of Mathematics,Mudanjiang Normal University,Mudanjiang,Heilongjiang157002,China;2.Dept of Fundamental Science,Tsinghua University,Beijing 100084,China);Positive solution to a nonlinear fourthorder periodic boundary value problem[J];Journal of Daqing Petroleum Institute;200603 
5 
CHEN Shunqing (Department of Math,Daxian Teachers College,Dazhou Sichuan 635000,China);Existence ofPositive Solutions for a Class Fourthorder Operator Boundary Value Problems[J];Journal of Daxian Teachers College;200502 
6 
ZHANG Huanhuan(College of Mathematics and Information Science,Northwest Normal University,Lanzhou 730070,China);Existence and uniqueness of solutions for fourthorder twopoint boundary value problems[J];Basic Sciences Journal of Textile Universities;200604 
7 
ZHANG Yanhong, ZENG Youdong(College of Mathematics and Computer Science, Fuzhou University, Fuzhou, Fujian 350002, China);The existence of positive solution for a fourorder threepoint boundary value problem[J];Journal of Fuzhou University(Natural Sciences Edtion);200501 
8 
ZHANG Yanhong,LU·· Hui(College of Mathematics and Computer Science,Fuzhou University,Fuzhou,Fujian 350002,China);The existence of positive solution for a fourorder threepoint singular boundary value problem[J];Journal of Fuzhou University(Natural Science Edition);200603 
9 
WU Hongping(College of Mathematics and Information science, Northwest Normal University, Lanzhou 730070);Multiple Positive Solutions of Fourth Order Singular Nonlinear Eigenvalue Problem[J];Chinese Journal of Engineering Mathematics;200402 
10 
ZHANG Jianguo1, ZHANG Fuwei2, LIU Jinshen2 (1 Faculty of Science, North China University of Technology, Beijing 100041; 2 Faculty of Science, Taiyuan University of Technology, Taiyuan 030024);The Existence and Multiplicity of Positive Solutions for a Class of Fourth Order Boundary Value Problem[J];Chinese Journal of Engineering Mathematics;200505 
