Vogler, Helmut Department of Organic Chemistry, Max Planck Institute for Medical Research, Max Planck Society;
https://pubs.rsc.org/en/content/articlepdf/1985/p2/p29850002033 (Any fulltext)
https://doi.org/10.1039/P29850002033 (Any fulltext)
Vogler, H. (1985). Simple theoretical considerations of counterion effects on proton chemical shifts in charged annulenes. Journal of the Chemical Society, Perkin Transactions 1, 1985(12), 2033-2036. doi:10.1039/P29850002033.