Tables of rovibronic term values for singlet electronic states of BH   molecule
  The method for objective (based on Ritz principle only) and optimal determination of electronic-vibro-rotational (rovibronic) term values from meassured wavenumbers recently proposed in our previous paper is applied for singlet electronic states of $^{11}$BH molecule, namely $X^1\Sigma^+$, $A^1\Pi$, $C'^1\Delta$, $B^1\Sigma^+$, $C^1\Sigma^+$, $D^1\Pi$, $E^1\Sigma^+$, $F^1\Sigma^+$, $G^1\Pi$, $H^1\Delta$, $I^1\Sigma^+$, $J^1\Sigma^+$. All known to authors experimental data on the wavenumbers of rovibronic spectral lines are used. Those are the wavenumber values of 1563 spectral lines of 15 band systems, obtained in 10 different original papers. As a result 529 term values with their standard deviations were derived. 
B.P.Lavrov, M.S.Ryazanov