%0 Journal Article %A Young, Eutiquio C. %T A Cauchy problem for a semi-axially symmetric wave equation %J Compositio Mathematica %D 1971 %P 297-306 %V 23 %N 3 %I Wolters-Noordhoff Publishing %U http://www.numdam.org/item/CM_1971__23_3_297_0/ %G en %F CM_1971__23_3_297_0