“…Skjelbred and Sund [49] used central extensions of Lie algebras to classify nilpotent Lie algebras. Using the same method, all non-Lie central extensions of all 4-dimensional Malcev algebras [24], all non-associative central extensions of all 3-dimensional Jordan algebras [23], all anticommutative central extensions of 3-dimensional anticommutative algebras [5], all central extensions of 2-dimensional algebras [7] and some others were described. One can also look at the classification of 3-dimensional nilpotent algebras [18], 4-dimensional nilpotent associative algebras [16], 4-dimensional nilpotent Novikov algebras [30], 4-dimensional nilpotent bicommutative algebras [38], 4-dimensional nilpotent commutative algebras in [18], 4-dimensional nilpotent CD-algebras in [32], 5-dimensional nilpotent restricted Lie agebras [14], 5-dimensional nilpotent Jordan algebras [22], 5-dimensional nilpotent anticommutative algebras [18], 6-dimensional nilpotent Lie algebras [11,15], 6dimensional nilpotent Malcev algebras [25], 6-dimensional nilpotent Tortkara algebras [20], 6-dimensional nilpotent binary Lie algebras [1], 6-dimensional nilpotent anticommutative CD-algebras [1], 8-dimensional dual mock-Lie algebras [10].…”