@Article{acp-3-999-2003,
AUTHOR = {J\"ockel, 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},
VOLUME = {3},
YEAR = {2003},
NUMBER = {4},
PAGES = {999--1005},
URL = {http://www.atmos-chem-phys.net/3/999/2003/},
DOI = {10.5194/acp-3-999-2003}
}