1 “...During August 1988. a group of 67 physicists from 45 laboratories in 17 countries met in Erice...”

2 “...During August 1986. a group of 96 physicists from 61 laboratories in 17 countries met in Erice...”

3 “...During July 1991. a group of 99 physicists from 57 laboratories in 27 countries met in Erice...”

4 “... in Erice for the 22nd Course of the International School of Subnuclear Physics. The countries represented...”

5 “...During July-August 1989. a group of 75 physicists from 52 laboratories in 16 countries met in Erice...”

6 “...In July 1975 a group of 122 physicists from 68 laboratories of 27 countries met in Erice to attend...”

7 “...During A:.lgust 1987. a group of 76 physicists from 51 laboratories in 22 countries met in Erice...”

8 “...During July 1990. a group of 83 physicists from 43 laboratories in 21 countries met in Erice...”