Stepan Holub, Dirk Nowotka. The Ehrenfeucht-Silberger problem. Journal of Combinatorial Theory, Series A, 119(3):668-682, 2012. [doi]
@article{HolubN12,
title = {The Ehrenfeucht-Silberger problem},
author = {Stepan Holub and Dirk Nowotka},
year = {2012},
doi = {10.1016/j.jcta.2011.11.004},
url = {http://dx.doi.org/10.1016/j.jcta.2011.11.004},
researchr = {https://researchr.org/publication/HolubN12},
cites = {0},
citedby = {0},
journal = {Journal of Combinatorial Theory, Series A},
volume = {119},
number = {3},
pages = {668-682},
}