- hdkinoteatr.com series/16808-sled.html
- en.wikipedia.org Trace (TV series)Trace (Russian: След, romanized: Sled) is a Russian crime drama television series about employees of Federal Expert Service ('FES'), the fictional organization.
- http://siriuswatcher.gr Inside/Series/Sled-Russian-…Sled Russian 2007-2023. Απίστευτο, 32 σεζόν με 3 059 επεισόδια. ... More Info -- https://en.wikipedia.org/wiki/Trace_(TV_series).
- http://serial.moviesfan.org c/sled-serial-1217/Detective, crime. Director: Igor Romaschenko, Vladimir Koyfman, Gennadiy Kurlaev. Starring: Olga Koposova, Sergey Pioro, Andrei Lavrov and others.
- akiro-film.ucoz.org load/series/sled_2007/2-1-0-39