DELCROIX J.I. 804,503 GAS-PHASE Gas-phase chemical physics database s the complete GAPHYOR literature database of physicochemical properties and processes involving neutral and ionized atoms, and simple molecules, in the gas phase for the years 1970-1986 / J.I. Delcroix [director]. -Amsterdam [etc.] s Elsevier, 1988. - Pt. A-C; 31 cm Pt. A : Systems with one element. - XXXII, 552, [1] s. Pt. B: Systems with two elements. - XXXII, 743, [1] s.