Roumen Anguelov Svetoslav Markov Blagovest Sendov The Set of Hausdorff Continuous Functions - The Largest Linear Space of Interval Functions. 337-363 2006 12 Reliable Computing 5 http://dx.doi.org/10.1007/s11155-006-9006-5 db/journals/rc/rc12.html#AnguelovMS06