Graded PI-exponents of simple Lie superalgebras
  We study $\mathbb{Z}_2$-graded identities of simple Lie superalgebras over a field of characteristic zero. We prove the existence of the graded PI-exponent for such algebras. 
Du\v{s}an D. Repov\v{s} and Mikhail V. Zaicev
math.RA