Alin Bostan, Antonio Jimenez Pastor,
"On the exponential generating function of labelled trees"
, in Comptes Rendus Mathematique, Vol. 358, Nummer 9-10, Académie des sciences, Paris, Seite(n) 1005-1009, 2020, ISSN: 1631-0721
Original Titel:
On the exponential generating function of labelled trees