author = {M. Rothstein},
title = {{On the Degree of the Integral of an Elementary Function}},
number = {89-11},
year = {1989},
sponsor = {BWF Austria},
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)}