@unpublished{10_5802_jolt_1430,
     author = {Calvaruso, Giovanni and Pellegrino, Lorenzo and Zaeim, Amirhesam},
     title = {Ricci solitons of special {Lorentzian} {Lie} groups with a four-dimensional isometry group},
     journal = {Journal of Lie Theory},
     publisher = {XXXX},
     doi = {10.5802/jolt.1430},
     language = {en},
     note = {Online first},
}