http://dcherukhin.i2p/research/research.htm
Subbotovskaya, Sov. Math. Dokl. 4, 478-481 (1963; Zbl 0154.25903 );
V. A. Stetsenko, Mat. Vopr. Kibern. 4, 139-177 (1992; Zbl 0805.06015 )].
The author proposes a criterion which allows to verify whether this partial order relation
is satisfied for arbitrary bases.