@techreport{plt-tr2006-tools-v351, author = {Robert Bruce Findler}, title = {{PLT} Tools: {DrScheme} Extension Manual}, number = {PLT-TR2006-tools-v351}, type = {Reference Manual}, institution = {PLT Scheme Inc.}, month = {July}, year = {2006}, url = {http://download.plt-scheme.org/doc/351/pdf/tools.pdf}, note = {\url{http://plt-scheme.org/techreports/}} }