International Union of Pure and Applied Chemistry, Physical Chemistry Section
Monografia (1962) Molecular spectroscopy : general and introductory lectures presented at the fifth European Congress on molecular spectroscopy held in Amsterdam, The Netherlands, May 29th–June 3rd, 1961
Monografia (1969) Molecular spectroscopy–IX : general lectures presented at the ninth European Congress on molecular spectroscopy held in Madrid, Spain, 10–15 September 1967