1. German Offen. 2,526,089;Tamagnone,1975
2. Simposio Internazionale sulla Ricerca Scientifica;Tamagnone,1975
3. International Congress of Inflammation;Berti,1978
4. A. K. Sim, M. E. Davies, and A. E. Scott, Inveresk Research International, Edinburgh, Scotland, unpublished results.