Péter Pál Pach, Gabriella Pluhár, András Pongrácz, Csaba Szabó. The Number of Rooted Trees of Given Depth. Electr. J. Comb., 20(2):38, 2013. [doi]
@article{PachPPS13, title = {The Number of Rooted Trees of Given Depth}, author = {Péter Pál Pach and Gabriella Pluhár and András Pongrácz and Csaba Szabó}, year = {2013}, url = {http://www.combinatorics.org/ojs/index.php/eljc/article/view/v20i2p38}, researchr = {https://researchr.org/publication/PachPPS13}, cites = {0}, citedby = {0}, journal = {Electr. J. Comb.}, volume = {20}, number = {2}, pages = {38}, }