@article{SLC_1999-2000_43_a7,
     author = {Carsten Schneider},
     title = {An {Implementation} of {Karr's} {Summation} {Algorithm} in {Mathematica}},
     journal = {S\'eminaire lotharingien de combinatoire},
     year = {1999-2000},
     volume = {43},
     url = {http://geodesic.mathdoc.fr/item/SLC_1999-2000_43_a7/}
}