Differential subordinations and superordinations for generalized Bessel   functions
  Differential subordination and superordination preserving properties for univalent functions in the open unit disk with an operator involving generalized Bessel functions are derived. Some particular cases involving trigonometric functions of our main results are also pointed out. 
Huda A. Al-Kharsani, \'Arp\'ad Baricz, K.S. Nisar
math.CV