@article {Biersack1765, author = {H.J. Biersack and F.F. Knapp, Jr. and C. Winkler}, title = {Three Decades of Scientific Liaison between Oak Ridge and Bonn}, volume = {30}, number = {11}, pages = {1765--1767}, year = {1989}, publisher = {Society of Nuclear Medicine}, issn = {0161-5505}, URL = {https://jnm.snmjournals.org/content/30/11/1765}, eprint = {https://jnm.snmjournals.org/content/30/11/1765.full.pdf}, journal = {Journal of Nuclear Medicine} }