  The standard theory of thermal radio emission encounters some difficulties.
The most crucial one is nonpossibility to explain the radio spectrum of Venus
in the decimeter range (Ksanfomality 1985). The radio spectra of planetary
nebulae at high frequencies also are not comfortably consistent with the
standard theory (Siodmiak & Tylenda 2001). Here we show that the account for an
induced character of radiation processes sufficiently improves the predictions
of the standard theory.
