1.

Technical Paper
Technical Paper
1. INEXACT REASONING IN EXPERT SYSTEMS: AN INTEGRATIVE OVERVIEW.
GROOTHUIZEN, R.J.P.
Pub. info.: NASA Technical Reports.  (NLR-TR-86009-U),  pp.1-23,  1986.  National Aeronautics and Space Administration
2.

Technical Paper
Technical Paper
2. SOLUTIONS OF BOUNDARY VALUE PROBLEMS FOR THE TRICOMI-EQUATION.
GROOTHUIZEN, R.J.P.
Pub. info.: NASA Technical Reports.  (IR-247),  pp.1-31,  1984.  National Aeronautics and Space Administration