Pure Appl. Chem., 1975, Vol. 44, No. 4, pp. 751-765
doi:10.1351/pac197544040751
Intrusion of substituents into the cavity of aromatic π-electron clouds*
V. Boekelheide
*Second International Symposium on the Chemistry of Nonbenzenoid Aromatic Compounds, Lindau/Bodensee, GFR, 23-27 September 1974