D. M. Jackson, Barbara Jeffcott, William T. Spears. The enumeration of sequences with respect to structures on a bipartition. Discrete Mathematics, 30(2):133-149, 1980. [doi]
@article{JacksonJS80,
title = {The enumeration of sequences with respect to structures on a bipartition},
author = {D. M. Jackson and Barbara Jeffcott and William T. Spears},
year = {1980},
doi = {10.1016/0012-365X(80)90115-6},
url = {http://dx.doi.org/10.1016/0012-365X(80)90115-6},
researchr = {https://researchr.org/publication/JacksonJS80},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {30},
number = {2},
pages = {133-149},
}