@article{RSMUP_1988__79__71_0,
     author = {D'Este, Gabriella},
     title = {Nonadmissible genealogical trees},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {71--86},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {79},
     year = {1988},
     mrnumber = {964021},
     zbl = {0741.05022},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1988__79__71_0/}
}