Charles Knessl, Wojciech Szpankowski. On the number of full levels in tries. Random Struct. Algorithms, 25(3):247-276, 2004. [doi]
@article{KnesslS04, title = {On the number of full levels in tries}, author = {Charles Knessl and Wojciech Szpankowski}, year = {2004}, doi = {10.1002/rsa.20023}, url = {http://dx.doi.org/10.1002/rsa.20023}, researchr = {https://researchr.org/publication/KnesslS04}, cites = {0}, citedby = {0}, journal = {Random Struct. Algorithms}, volume = {25}, number = {3}, pages = {247-276}, }