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2. Almost alternative algebras;Albert, A. A.;Portugal. Math.,1949
3. The structure of right alternative algebras;Albert, A. A.;Ann. of Math. (2),1954
4. Simple alternative rings;Kleinfeld, Erwin;Ann. of Math. (2),1953
5. Simple algebras of type (1,1) are associative;Kleinfeld, Erwin;Canadian J. Math.,1961