1. Stable carbocations. CXXXVII. Cycloheptenyl, cyclooctenyl, and cyclononenyl cations
2. (a) For reviews see and : Carbonium Ions. Wiley-Interscience, New York, Vol. 1, 1968, Vol. 2, 1970, Vol. 3, 1972, Vol. 4, 1973;
3. (b) and : Carbonium Ions, An Introduction. Academic Press, New York 1967.
4. Stable, Long-lived Carbonium Ions
5. Stable Carbonium Ions in Solution