Richard Beigel, Richard Chang. Commutative Queries. Inf. Comput., 166(1):71-91, 2001.
@article{BeigelC01,
title = {Commutative Queries},
author = {Richard Beigel and Richard Chang},
year = {2001},
researchr = {https://researchr.org/publication/BeigelC01},
cites = {0},
citedby = {0},
journal = {Inf. Comput.},
volume = {166},
number = {1},
pages = {71-91},
}