[8] Mamouni A., Oukhtite L.: Generalized derivations centralizing on Jordan ideals of rings with involution. submitted.
[9] Oukhtite L.: 
On Jordan ideals and derivations in rings with involution. Comment. Math. Univ. Carolin. 51 (2010), no. 3, 389–395. 
MR 2741872 | 
Zbl 1211.16037[11] Oukhtite L., Salhi S.: 
On derivations in $\sigma$-prime rings. Int. J. Algebra 1 (2007), no. 5, 241–246. 
MR 2342997 | 
Zbl 1124.16025