@article{EJC_1996__3_1_119229,
     author = {Prodinger, Helmut},
     title = {Descendants in heap ordered trees or a triumph of computer algebra.},
     journal = {The Electronic Journal of Combinatorics [electronic only]},
     pages = {Research paper R29, 9 p.},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1996},
     zbl = {0885.05004},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/EJC_1996__3_1_119229/}
}