@article{WilliamsDorjiRenetal.2022,
  author    = {Paul H. Williams and Phurpa Dorji and Zongxin Ren and Zhenghua Xie and Michael Orr},
  title     = {Bumblebees of the hypnorum-complex world-wide including two new near-cryptic species (Hymenoptera: Apidae)},
  journal   = {European journal of taxonomy},
  volume    = {2022},
  number    = {847},
  pages     = {46 -- 72},
  doi       = {10.5852/ejt.2022.847.1981},
  year      = {2022},
}