@article{SLC_1984_10_a8,
     author = {Peter Gerl},
     title = {Rekurrente und transiente {B\"ame}},
     journal = {S\'eminaire lotharingien de combinatoire},
     year = {1984},
     volume = {10},
     url = {http://geodesic.mathdoc.fr/item/SLC_1984_10_a8/}
}