缺少或|title=为空 (帮助) 引文格式1维护:日期与年 (link) Connors, Martin; Paul Chodas, SeppoMikkola, Paul Wiegert, Christian Veillet, Kimmo Innanen (September 2002). "Earth
for the solution of Kepler's equation. 1986. doi:10.2514/6.1986-84. Mikkola, Seppo. A cubic approximation for Kepler's equation. Cel. Mech. 1987, 40 (3)