1. METASTABLE ION STUDIES IN THE CHARACTERISATION OF SOME P-X SUBSTITUTED ARYLSULFONAMIDESOF THE O,O-DIPHENYLTHIOPHOSPHORIC ACID. Authors: SIMONA NICOARĂ, Z. MOLDOVAN, N. PALIBRODA, M. CULEA, I. FENESAN, R. POPESCU, C. BELE.2. ELECTRON IMPACT MASS SPECTRAL STUDY OF SOME S-METHYL P-ARYLSULPHONAMIDES OF THE DIMETHYLAMIDOCYCLOHEXYLPHOSPHONIC ACID. Authors: SIMONA NICOARĂ, Z. MOLDOVAN, I. FENESAN, O. COZAR.3. MASS SPECTRAL ANALYSIS OF SOME P-ARYL SUBSTITUTED THIPHOSPHORORGANIC COMPOUNDS. Authors: SIMONA NICOARĂ, MONICA CULEA, Z. MOLDOVAN, I. FENESAN, O. COZAR.