author = {S. STIFTER},}
title = {{How to Fix an Ellipse by Three Pins.}},
number = {88-65},
year = {1988},
sponsor = {AIS GmbH, BMWF},
type = {RISC Report Series},
institution = {Research Institute for Symbolic Computation (RISC), Johannes Kepler University Linz},
address = {Altenberger Straße 69, 4040 Linz, Austria},
issn = {2791-4267 (online)}