Guoxiang Gu, Pramod P. Khargonekar. . Automatica, 28(2):299-312, 1992. [doi]

@article{GuK92,
  title = {∞},
  author = {Guoxiang Gu and Pramod P. Khargonekar},
  year = {1992},
  doi = {10.1016/0005-1098(92)90117-X},
  url = {http://dx.doi.org/10.1016/0005-1098(92)90117-X},
  researchr = {https://researchr.org/publication/GuK92},
  cites = {0},
  citedby = {0},
  journal = {Automatica},
  volume = {28},
  number = {2},
  pages = {299-312},
}