Robert P. Kurshan. B.S.T.J. brief: All terminal bubbles programs yield the elementary symmetric polynomials. Bell Syst. Tech. J., 49(8):1991-1994, 1970. [doi]
@article{Kurshan70,
title = {B.S.T.J. brief: All terminal bubbles programs yield the elementary symmetric polynomials},
author = {Robert P. Kurshan},
year = {1970},
doi = {10.1002/j.1538-7305.1970.tb04299.x},
url = {https://doi.org/10.1002/j.1538-7305.1970.tb04299.x},
researchr = {https://researchr.org/publication/Kurshan70},
cites = {0},
citedby = {0},
journal = {Bell Syst. Tech. J.},
volume = {49},
number = {8},
pages = {1991-1994},
}