1. A. A. Albert, ‘‘Quadratic forms permitting composition,’’ Ann. Math., Sec. Ser. 43 (12), 161–177 (1942).
2. R. B. Brown, ‘‘On generalized Cayley–Dickson algebras,’’ Pacif. J. Math. 20 (319), 415–422 (1967).
3. C. Flaut, ‘‘Levels and sublevels of algebras obtained by the Cayley–Dickson process,’’ Ann. Mat. Pura Appl. 192, 1099–1114 (2013).
4. C. Flaut, ‘‘Divison algebras with dimension $$2^{t},t\in\mathbb{N}$$,’’ Anal. Sti. Univ. Ovidius Const., Ser. Mat. 13 (2), 31–38 (2006).
5. C. Flaut and V. Shpakivskyi, ‘‘Some identities in algebras obtained by the Cayley-Dickson process,’’ Adv. Appl. Clifford Algebras 23, 63–76 (2013).