Mauro Cherubini Gina Venolia Robert DeLine Building an Ecologically valid, Large-scale Diagram to Help Developers Stay Oriented in Their Code. 157-162 2007 conf/vl/2007 VL/HCC http://doi.ieeecomputersociety.org/10.1109/VLHCC.2007.12 db/conf/vl/vlhcc2007.html#CherubiniVD07