@Article{ 
  ShiSpe16,
  author = { Shieh, Tien-Tsan and Spector, Daniel },
  title = { On a new class of fractional partial differential equations II },
  journal = { Adv. Calc. Var. },
  year = { 2018 },
  volume = { 11 },
  number = { 3 },
  pages = { 289–307 },
  URL = { http://cvgmt.sns.it/paper/3237/ },
  note = { cvgmt preprint}
}