TY - JOUR AU - Cimatti, Giovanni TI - Remark on the equations of axially symmetric gravitational fields JO - Rendiconti del Seminario Matematico della Università di Padova PY - 2017 SP - 91 EP - 100 VL - 138 PB - European Mathematical Society Publishing House PP - Zuerich, Switzerland UR - http://www.numdam.org/articles/10.4171/RSMUP/138-4/ DO - 10.4171/RSMUP/138-4 ID - RSMUP_2017__138__91_0 ER -