%A Jiang Jiqiang %A Liu Lishan %A Wu Yonghong %N 43 %P 1-18 %D 2012 %L acta42444 %O Bibliogr.: p. 16-18. %K Fixpont-elmĂŠlet, Stieltjes-integrĂĄl %T Multiple positive solutions of singular fractional differential system involving Stieltjes integral conditions