1. Albeverio S.A., Ayupov S.A., Omirov B.A., Cartan subalgebras, weight spaces, and criterion of solvability of finite-dimensional Leibniz algebras. Rev. Mat. Complut., 2006, 19(1): 183–195
2. Alp M., Pullback crossed modules of algebroids. Iran. J. Sci. Technol. Trans. A Sci., 2008, 32(1): 1–5
3. Alp M., Pushout crossed modules of algebroids. Iran. J. Sci. Technol. Trans. A Sci., 2008, 32(3): 175–181
4. Mathematical Applications in Modern Science, Mathematics and Computers in Science and Engineering Series;M Alp,2014
5. Barnes D.W., On Levi’s theorem for Leibniz algebras. Bull. Aust. Math. Soc., 2012, 86(2): 184–185