@article {A1985,
title = {A Pitfall in Using Troll TSLS with Linear Restrictions in TROLL},
year = {1985},
url = {https://www.esri.ie/publications/a-pitfall-in-using-troll-tsls-with-linear-restrictions-in-troll},
author = {Conniffe, D., FitzGerald, J., and Hughes, G.},
journal = {Memorandum Series 171},
}