@misc{sto-16-sec-1,
  author = {Jorge Stolfi},
  title = {Comments about File No. SR-BatsBZX-2016-30 (I), 2016-07-13},
  url = {https://www.sec.gov/comments/sr-batsbzx-2016-30/batsbzx201630-2.htm},
  howpublished = {Letter to the US Securities and Exchanges Commission (SEC)},
  year = 2016,
  month = jul
}