%0 Journal Article %A A. Haji-Badali %A R. Karami %T Ricci Solitons on Four-dimensional Neutral Lie Groups %J Journal of Lie theory %D 2017 %P 943-967 %V 27 %N 4 %U http://geodesic.mathdoc.fr/item/JLT_2017_27_4_JLT_2017_27_4_a2/ %F JLT_2017_27_4_JLT_2017_27_4_a2