TY - JOUR T1 - Elementary Solution of Kepler Problem (and a few other problems) JO - Revista Brasileira de Ensino de FĂ­sica A1 - Moriconi, M. SN - 1806-1117 UL - 10.1590/1806-9126-RBEF-2021-0365 VL - 44 Y1 - 2022 PB - Brasil ER -