Backdoors to Acyclic SATSerge Gaspers, Stefan Szeider10 2011, Technical report 1110.6384, Arxiv.org.
Bibtex Entry:
@TECHREPORT{GaspersSzeider11a,
author = {Serge Gaspers and Stefan Szeider},
title = {Backdoors to Acyclic {SAT}},
institution = {Arxiv.org},
year = 2011,
number = {1110.6384},
month = {10},
}