No. 161,  Qusasi-Periodic Pulsations: Fermi GBM results, by David Gruber and Pawel Lachowicz: dealing with red noise. See

http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/Quasi-Periodic_Pulsations:_Fermi/GBM_Results

Older Nuggets are available at
http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets
 (the current series, 2008-present), and at
http://sprg.ssl.berkeley.edu/~tohban/nuggets/ (the original series, 2005-2008).

We publish these at roughly two-week intervals and welcome
contributions, which should be 
related, at least loosely, to RHESSI
science.