Owing to the fact that a Living Reviews in Relativity article may evolve over time, we recommend to cite the article as follows:
Piotr Jaranowski and Andrzej Królak,
"Gravitational-Wave Data Analysis. Formalism and Sample Applications: The Gaussian Case",
Living Rev. Relativity 8, (2005), 3. URL (accessed <date>):
The date given as <date> then uniquely identifies the version of the article you are referring to.