@misc{cryptoeprint:2020:1605,
    author = {Alexander R. Block and Simina Branzei and Hemanta K. Maji and Himanshi Mehta and Tamalika Mukherjee and Hai H. Nguyen},
    title = {$P_4$-free Partition and Cover Numbers},
    howpublished = {Cryptology ePrint Archive, Report 2020/1605},
    year = {2020},
    url = {https://eprint.iacr.org/2020/1605},
}