Latest version of the standardization proposal:
http://logtalk.org/plstd/posi.pdf
Logtalk source file, defining the "systemp" protocol used for generating the PDF file above:
http://logtalk.org/plstd/systemp.lgt
To generate the PDF file, start Logtalk, compile the file and then use the "lgt2pdf" script on the directory containing the XML documenting file generated by the Logtalk compiler for the "systemp.lgt" file.
Paulo