Page 1. Thermochimica Acta, 178 (1991) 241-248 Elsevier Science Publishers BV. Amsterdam 241 ... (b) D. Teica, E. Segal and M. Andruh, Thermochim. Acta, 178 (1991) 249. 2 A. Guinier, Theorie et Technique de la Radiocrystalograpbie, Dunod, Paris, 1964, p. 420. ...