@book{ Solr-acta73689, title = {Sign-changing solutions for fourth-order elliptic equations of Kirchhoff type with critical exponent}, series = {Electronic journal of qualitative theory of differential equations}, author = {Liang Sihua}, year = {2021}, url = {http://acta.bibl.u-szeged.hu/73689/1/ejqtde_2021_037.pdf} }