@article{JIS_2000__3_1_a1,
     author = {Bauer, Michael and Golinelli, Oliver},
     title = {On the kernel of tree incidence matrices},
     journal = {Journal of integer sequences},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2000__3_1_a1/}
}