@article{GT_2021_25_4_a2,
     author = {Leary, Ian J and Minasyan, Ashot},
     title = {Commensurating {HNN} extensions: nonpositive curvature and biautomaticity},
     journal = {Geometry & topology},
     pages = {1819--1860},
     publisher = {mathdoc},
     volume = {25},
     number = {4},
     year = {2021},
     doi = {10.2140/gt.2021.25.1819},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2021.25.1819/}
}