Smith, David C.; Spivack, Arthur J.; Fisk, Martin R.; Haveman, Shelley A.; Staudigel, Hubert (2000): Tracer-based estimates of drilling-induced microbial contamination of deep sea crust. Taylor & Francis, London, United Kingdom, Geomicrobiology Journal, 17 (3), 207-219, georefid:2001-015882