Kuhn, Richard Max Planck Institute for Medical Research, Max Planck Society;
http://onlinelibrary.wiley.com/doi/10.1002/anie.196301631/epdf (Any fulltext)
https://doi.org/10.1002/anie.196301631 (Any fulltext)
Kuhn, R. (1963). Anions and free radicals of acidic hydrocarbons and their Aza-isologues. Angewandte Chemie International Edition, 2(3), 163. doi:10.1002/anie.196301631.