@techreport{plt-tr2002-2-v201, author = {Matthew Flatt and Robert Bruce Findler}, title = {{PLT} {MrEd}: Graphical Toolbox Manual}, number = {PLT-TR2002-2-v201}, type = {Reference Manual}, institution = {PLT Scheme Inc.}, month = {July}, year = {2002}, url = {http://download.plt-scheme.org/doc/201/pdf/mred.pdf}, note = {\url{http://plt-scheme.org/techreports/}} }