Richard P. Stanley. Rodica Simion and Shuffle Posets. Adv. Appl. Math., 28(3-4):282-284, 2002. [doi]
@article{Stanley02-2, title = {Rodica Simion and Shuffle Posets}, author = {Richard P. Stanley}, year = {2002}, doi = {10.1006/aama.2001.0784}, url = {https://doi.org/10.1006/aama.2001.0784}, researchr = {https://researchr.org/publication/Stanley02-2}, cites = {0}, citedby = {0}, journal = {Adv. Appl. Math.}, volume = {28}, number = {3-4}, pages = {282-284}, }