AMG Bulletin No. 68A Feb. 1968
AMG Bulletin No. 68B Apr. 1968
Physique Pictorial Vol. 17 No. 1 Jul. 1968 pg. 30
Physique Pictorial Vol. 17 No. 2-4 Jan. 1969 pg. 10
AMG Bulletin No. 69E Jul. 1969 pg. 3
AMG Bulletin No. 70A 1970
Physique Pictorial Vol. 21 Jul. 1972 pg. 31
Physique Pictorial Vol. 22 Apr. 1973 pg. 3
Physique Pictorial Vol. 29 Mar. 1977 pg. 23