@Article{acpd-3-1733-2003, AUTHOR = {Jöckel, P. and Brenninkmeijer, C. A. M. and Lawrence, M. G. and Siegmund, P.}, TITLE = {The detection of solar proton produced $^{14}$CO}, JOURNAL = {Atmospheric Chemistry and Physics Discussions}, VOLUME = {3}, YEAR = {2003}, NUMBER = {2}, PAGES = {1733--1752}, URL = {http://www.atmos-chem-phys-discuss.net/3/1733/2003/}, ISSN = {1680-7367} }