Baumann S, Klymak M. HighFrequencyCovariance: A Julia Package for Estimating Covariance Matrices Using High Frequency Financial Data. J. Stat. Soft. [Internet]. 2022 Aug. 15 [cited 2024 Nov. 21];103(14):1-25. Available from: https://www.jstatsoft.org/index.php/jss/article/view/v103i14