  The strength of the 5/2+ resonance of the reaction 36Ar(p,gamma)37K at E_p =
918 keV was measured absolutely: omega gamma = (258 \pm 24) meV. The new result
is consistent with previous results. This resonance was used in several
experiments as a calibration standard. Therefore we discuss our experimental
uncertainties in detail which is important for the reliability of previous
experiments and our new result.
