%0 Journal Article %A Cimatti, Giovanni %T Remark on the equations of axially symmetric gravitational fields %J Rendiconti del Seminario Matematico della Università di Padova %D 2017 %P 91-100 %V 138 %I European Mathematical Society Publishing House %C Zuerich, Switzerland %U http://www.numdam.org/articles/10.4171/RSMUP/138-4/ %R 10.4171/RSMUP/138-4 %F RSMUP_2017__138__91_0