John Harding, Anna B. Romanowska. Varieties of Birkhoff Systems Part II. Order, 34(1):69-89, 2017. [doi]
@article{HardingR17a,
title = {Varieties of Birkhoff Systems Part II},
author = {John Harding and Anna B. Romanowska},
year = {2017},
doi = {10.1007/s11083-016-9392-1},
url = {http://dx.doi.org/10.1007/s11083-016-9392-1},
researchr = {https://researchr.org/publication/HardingR17a},
cites = {0},
citedby = {0},
journal = {Order},
volume = {34},
number = {1},
pages = {69-89},
}