@article{SLC_2006-2007_54_a2,
     author = {Anthony J. Guttmann and Iwan Jensen},
     title = {Fuchsian {Differential} {Equation} for the {Perimeter} {Generating} {Function} of {Three-Choice} {Polygons}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {54},
     year = {2006-2007},
     url = {http://geodesic.mathdoc.fr/item/SLC_2006-2007_54_a2/}
}