How is ROTATE cited correctly in publications?

The best way to cite ROTATE is

(a) Renner, S.; Schwab, C.H.; Schneider, G.; Gasteiger, J.
Impact of conformational flexibility on three-dimensional similarity searching using correlation vectors.
J. Comp. Inf. Model. 2006, 46, 2324-2332.
(http://dx.doi.org/10.1021/ci050075s)
(b) The conformer generator ROTATE is available from Molecular Networks GmbH, Erlangen, Germany (http://www.molecular-networks.com).