@techreport{pub6067,
author = {
Bauer, Mathias
and
Biundo, Susanne
and
Dengler, Dietmar
and
Koehler, Jana
and
Paul, Gabriele
},
title = {PHI - A Logic-Based Tool for Intelligent Help Systems},
series = {DFKI Research Reports (RR)},
year = {1992},
volume = {92-52},
pages = {14},
institution = {DFKI}
}