  New results of calculation of quenching factors for ions in scintillators in
semi-empirical approach described in [V.I. Tretyak, Astropart. Phys. 33 (2010)
40] are presented. In particular, they give additional arguments in favour of
hypothesis that quenching factors for different particles can be described with
the same Birks factor kB, if all the data were collected in the same conditions
and processed in the same way.
