Using VIVE Tracker to Detect the Trajectory of Mobile Robots

BibTeX does not have the right entry for preprints. This is a hack for producing the correct reference:

@Booklet{EasyChair:6241,
  author = {Yong Wang and Peng Tian and Yu Zhou and Mao Mao Zhu and Qing Chen and Chang Zhang},
  title = {Using VIVE Tracker to Detect the Trajectory of Mobile Robots},
  howpublished = {EasyChair Preprint no. 6241},

  year = {EasyChair, 2021}}