@article{GaroufalidisKoutschan13,
 author = {Stavros Garoufalidis and Christoph Koutschan},
 title = {Irreducibility of $q$-difference operators and the knot $7_4$},
 journal = {Algebraic \& Geometric Topology},
 year = {2013},
 volume = {13},
 number = {6},
 pages = {3261--3286},
 isbn_issn = {ISSN 1472-2747},
 doi = {10.2140/agt.2013.13.3261},
 url = {http://www.math.gatech.edu/~stavros/publications/double.twist.data/},
}