Reference:
Kaisa Nyberg. Commutativity in cryptography. In 1st International Trier Conference in Functional Analysis. Walter Gruyter & Co, 1996.
Suggested BibTeX entry:
@inproceedings{nyberg:trier94, author = {Kaisa Nyberg}, booktitle = {1st International {Trier} Conference in Functional Analysis}, publisher = {Walter Gruyter \& Co}, title = {Commutativity in cryptography}, year = {1996}, }