MLA

Ramos, et al. Digital Repetitive Control Under Varying Frequency Conditions. Springer Berlin Heidelberg, 2013.

APA

Ramos, R., Costa-Castelló, R., Olm, J. M, & Ramos, G. A. (2013). Digital Repetitive Control under Varying Frequency Conditions. Springer Berlin Heidelberg.

Chicago

Ramos, Ramon Costa-Castelló, Josep M Olm, and Germán A Ramos. Digital Repetitive Control Under Varying Frequency Conditions. : Springer Berlin Heidelberg, 2013.