@article{RISC5270,
author = {C. Schneider},
title = {{Summation Theory II: Characterizations of $R\Pi\Sigma$-extensions and algorithmic aspects}},
language = {english},
journal = {J. Symb. Comput.},
volume = {80},
number = {3},
pages = {616--664},
isbn_issn = {ISSN 0747-7171},
year = {2017},
note = {arXiv:1603.04285 [cs.SC]},
refereed = {yes},
length = {54},
url = {http://arxiv.org/abs/1603.04285}
}