"Reduktion." . . "Electron paramagnetic resonance spectroscopy." . . "Elektronenspinresonanzspektroskopie." . . "Pyridine." . . . . "Aromatiese verbindings." . . . . . . . . . "The interaction between alkali cations and azaaromatic radical anions : an ESR study"@en . . . . . "The interaction between alkalications and azaaromatic radical anions : an ESR study" . . "The interaction between alkali cations and azzaromatic radical anions : an ESR study" . . . . . . . . "The interaction between alkai cations and azaaromatic radical anions : an ESR study" . . . . . . . . . . . . "The interaction between alkali cations and azaaromatic radical anions; an ESR study" . "Elektronspinresonansie." . . "Asoverbindings." . . "Stickstoffheterocyclen." . . "Pyridazines." . . "Alkali metals." . .