1. AMMONIUM SALTS OF ORGANOPHOSPHORUS ACIDS. CRYSTAL AND MOLECULAR STRUCTURE OF [Et3NH]+[(SPMe2)(SPPh2)N]- AND [2-{O(CH2CH2)2N(H)CH2}C6H4. Authors: ANCA SILVESTRU, DRAGOS MARGINEANU, RICHARD A. VARGA, MONICA KULCSAR, ANA MARIA PREDA.2. RADIOCARBON DATING OF A VERY LARGE AFRICAN BAOBAB FROM LIMPOPO, SOUTH AFRICA: INVESTIGATION OF THE SAGOLE BIG TREE. Authors: KARL F. VON REDEN, DRAGOS MARGINEANU, JENÖ BODIS, EDIT FORIZS, DANIEL A. LOWY, ROBERT VAN PELT, ROXANA T. PATRUT, ADRIAN PATRUT.3. RADIOCARBON INVESTIGATION OF THE PEDUNCULATE OAK OF BOTOSANA, ROMANIA. Authors: ADRIAN PATRUT, NICOLAE ROBU, VASILE SAVU, ROXANA T. PATRUT, LASZLO RAKOSY, ILEANA-ANDREEA RAŢIU, DANIEL A. LOWY, DRAGOS MARGINEANU, KARL F. VON REDEN.4. RADIOCARBON INVESTIGATION OF THE SUPERLATIVE AFRICAN BAOBABS FROM SAVÉ VALLEY CONSERVANCY, ZIMBABWE. Authors: ADRIAN PATRUT, ROXANA T. PATRUT, LASZLO RAKOSY, DANIEL A. LOWY, DRAGOS MARGINEANU, KARL F. VON REDEN.