1. Mass Ion;Suhr;Angew Chem Int Edit Int J Spect Phys,1972
2. in Mass edited by New York Mass Ion ll in Chemical in cal Discharges Advance in Series No American Chemical;Lossing;Atom Molec Phys Int J Spect Phys Chem Phys Rev Sei Chem Phys Chemistry Society Am Chem Soc,1963
3. Chemical;Chupka;Chem Phys,1971