David Eppstein Elena Mumford Bettina Speckmann Kevin Verbeek Area-universal rectangular layouts. 267-276 2009 Symposium on Computational Geometry http://doi.acm.org/10.1145/1542362.1542411 conf/compgeom/2009 db/conf/compgeom/compgeom2009.html#EppsteinMSV09