@techreport{RISC1857,author = {Jochen Pfalzgraf},
title = {{Logical Fiberings and Polycontextural Systems}},
number = {91-24},
year = {1991},
note = {Published in Proceedings of FAIR'91, Jarrand, Kehmen (eds.), Springer, LNCS 535. Short Version of RISC-Report 91-13.},
sponsor = { BWF project number 160.006/2-26/89 in the frame of the Esprit Basic Research Actions 3125 Project MEDLAR.},
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)}
}