● Erauso G,Marsin S,Benbouzid-Rollet N,Baucher MF,Barbeyron T,Zivanovic Y,Prieur D,Forterre P (1996). Sequence of plasmid pGT5 from the archaeon Pyrococcus abyssi: evidence for rolling-circle replication in a hyperthermophile. J. Bacteriol.178, 3232-7.