Stevic Stevo,Sharma Ajay K,Bhat Ambika (2011) Essential norm of products of multiplication composition and differentiation operators on weighted Bergman spaces, APPLIED MATHEMATICS AND COMPUTATION, vol. 218, br. 6, str. 2386-2397 (Article) 

Stevic Stevo,Sharma Ajay K,Bhat Ambika (2011) Products of multiplication composition and differentiation operators on weighted Bergman spaces, APPLIED MATHEMATICS AND COMPUTATION, vol. 217, br. 20, str. 8115-8125 (Article)