T. von Lerber, J. Tuominen, H. Ludvigsen, S. Honkanen, and F. Küppers. 2007. Investigation of multiwavelength clock recovery based on heterodyne beats of sideband-filtered signal. Optics Communications, volume 271, number 1, pages 87-90. © 2007 Elsevier Science Reprinted with permission from Elsevier.