@article{Pommrich_2010, doi = {10.1029/2010gl044056}, url = {https://doi.org/10.1029%2F2010gl044056}, year = 2010, month = {aug}, publisher = {American Geophysical Union ({AGU})}, volume = {37}, number = {16}, pages = {n/a--n/a}, author = {R. Pommrich and R. Müller and J.-U. Groo{\ss} and G. Günther and P. Konopka and M. Riese and A. Heil and M. Schultz and H.-C. Pumphrey and K. A. Walker}, title = {What causes the irregular cycle of the atmospheric tape recorder signal in {HCN}?}, journal = {Geophysical Research Letters} }