@article{TAC_2004_12_a14,
     author = {John C. Baez and Alissa S. Crans},
     title = {Higher-Dimensional {Algebra} {VI:} {Lie} {2-Algebras}},
     journal = {Theory and applications of categories},
     pages = {492--528},
     publisher = {mathdoc},
     volume = {12},
     year = {2004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2004_12_a14/}
}