%0 Journal Article %T WHEN IS A FIXED SUM NOT A FIXED SUM BUT A PENALTY CLAUSE? %A Bruno Zeller %J Journal of Law and Commerce %D 2012 %I University Library System, University of Pittsburgh %R 10.5195/jlc.2012.4 %U http://jlc.law.pitt.edu/ojs/index.php/jlc/article/view/4