Manindra Agrawal Eric Allender Russell Impagliazzo Toniann Pitassi Steven Rudich Reducing the complexity of reductions. 117-138 2001 10 Computational Complexity 2 http://link.springer.de/link/service/journals/00037/bibs/1010002/10100117.htm db/journals/cc/cc10.html#AgrawalAIPR01