Albeverio, S.A., Ayupov, S.A. y Omirov, B.A. (2006) «Root Arrangements of Hyperbolic Criterion of Solvability of Finite Dimensional Leibniz Algebras», Revista Matemática Complutense, 19(1), pp. 197–225. doi:10.5209/rev_REMA.2006.v19.n1.16654.