%0 Journal Article %A Stam, A. J. %T Renewal theory in $r$ dimensions (I) %J Compositio Mathematica %D 1969 %P 383-399 %V 21 %N 4 %I Wolters-Noordhoff Publishing %U http://www.numdam.org/item/CM_1969__21_4_383_0/ %G en %F CM_1969__21_4_383_0