@Article{PerelliZaccagnini1995,
  Author = "A. Perelli and A. Zaccagnini",
  Title  = "On the sum of a prime and a $k$-th power",
  Journal = "Izv. Ross. Akad. Nauk, Ser. Math.",
  Volume = 59,
  Pages = "185--200",
  Year = 1995,
  Abstract = "We prove conditional and unconditonal results on the 
   distribution of Hardy--Littlewood numbers in short intervals."
}