Possible anomalous ZZg and Zgg couplings and Z boson spin orientation in e+ e- ZgOts, Ilmar; Uibo, H.; Liivat, H.; Loide, Rein-Karl; Saar, ReinNuclear physics B2004 / p. 346-356 https://ui.adsabs.harvard.edu/abs/2006NuPhB.740..212O/abstract