The Concept of Multiset

G. P. Monro. The Concept of Multiset. Math. Log. Q., 33(2):171-178, 1987. [doi]

@article{Monro87,
  title = {The Concept of Multiset},
  author = {G. P. Monro},
  year = {1987},
  doi = {10.1002/malq.19870330212},
  url = {http://dx.doi.org/10.1002/malq.19870330212},
  researchr = {https://researchr.org/publication/Monro87},
  cites = {0},
  citedby = {0},
  journal = {Math. Log. Q.},
  volume = {33},
  number = {2},
  pages = {171-178},
}