Gong, X. and Zhang, B. 2021. Comparing Large-unit and Bitwise Linear Approximations of SNOW 2.0 and SNOW 3G and Related Attacks. IACR Transactions on Symmetric Cryptology. 2021, 2 (Jun. 2021), 71–103. DOI:https://doi.org/10.46586/tosc.v2021.i2.71-103.