%0 Journal Article %A DONG , XIN %A BAI, ZHANBING %T POSITIVE SOLUTIONS OF FOURTH-ORDER BOUNDARY VALUE PROBLEM WITH VARIABLE PARAMETERS %J Journal of nonlinear sciences and its applications %D 2008 %P 21-30 %V 1 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.22436/jnsa.001.01.04/ %R 10.22436/jnsa.001.01.04 %G en %F JNSA_2008_1_1_a3