Andrew Vince, Michelle L. Wachs. A shellable poset that is not lexicographically shellable. Combinatorica, 5(3):257-260, 1985.
@article{VinceW85,
title = {A shellable poset that is not lexicographically shellable},
author = {Andrew Vince and Michelle L. Wachs},
year = {1985},
researchr = {https://researchr.org/publication/VinceW85},
cites = {0},
citedby = {0},
journal = {Combinatorica},
volume = {5},
number = {3},
pages = {257-260},
}