Nattapon Sonpanow, Pimpen Vejjajiva. Factorials and the finite sequences of sets. Math. Log. Q., 65(1):116-120, 2019. [doi]
@article{SonpanowV19, title = {Factorials and the finite sequences of sets}, author = {Nattapon Sonpanow and Pimpen Vejjajiva}, year = {2019}, doi = {10.1002/malq.201800052}, url = {https://doi.org/10.1002/malq.201800052}, researchr = {https://researchr.org/publication/SonpanowV19}, cites = {0}, citedby = {0}, journal = {Math. Log. Q.}, volume = {65}, number = {1}, pages = {116-120}, }