@article{article3be86bb2,
title   = {Groups of PL-homeomorphisms admitting nontrivial invariant characters},
author = {Gonçalves, Daciberg Lima and Sankaran, Parameswaran and Strebel, Ralph},
year = {2017},
doi = {10.2140/pjm.2017.287.101},
journal   = {Pacific Journal of Mathematics}
}