To cite TreeSummarizedExperiment in publications use:

  Huang R, Soneson C, Ernst FGM et al. TreeSummarizedExperiment: a S4
  class for data with hierarchical structure. F1000Research 2021,
  9:1246 (https://doi.org/10.12688/f1000research.26669.2)

A BibTeX entry for LaTeX users is

  @Article{,
    title = {TreeSummarizedExperiment: a S4 class for data with hierarchical structure},
    author = {Ruizhu Huang and Charlotte Soneson and Felix G.M. Ernst and Kevin C. Rue-Albrecht and Guangchuang Yu and Stephanie C. Hicks and Mark D. Robinson},
    journal = {F1000Research},
    year = {2021},
    volume = {9},
    pages = {1246},
    url = {https://f1000research.com/articles/9-1246},
  }