@article{JRAM_1992__432_153461,
     author = {G.R. Everest},
     title = {On the canonical height for the algebraic unit group.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {57--68},
     publisher = {mathdoc},
     volume = {432},
     year = {1992},
     zbl = {0754.11030},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1992__432_153461/}
}