Keunbae Choi, Yongdo Lim. Möbius and triangle semigroups. Periodica Mathematica Hungarica, 60(1):49-69, 2010. [doi]
@article{ChoiL10-10,
title = {Möbius and triangle semigroups},
author = {Keunbae Choi and Yongdo Lim},
year = {2010},
doi = {10.1007/s10998-010-1049-z},
url = {http://dx.doi.org/10.1007/s10998-010-1049-z},
researchr = {https://researchr.org/publication/ChoiL10-10},
cites = {0},
citedby = {0},
journal = {Periodica Mathematica Hungarica},
volume = {60},
number = {1},
pages = {49-69},
}