Ralf Bicker, Bernd Voigt. Density theorems for finitistic trees. Combinatorica, 3(3):305-313, 1983.
@article{BickerV83,
title = {Density theorems for finitistic trees},
author = {Ralf Bicker and Bernd Voigt},
year = {1983},
researchr = {https://researchr.org/publication/BickerV83},
cites = {0},
citedby = {0},
journal = {Combinatorica},
volume = {3},
number = {3},
pages = {305-313},
}