Natalay Kouprina, Michael Mullokandov, Igor B. Rogozin, N. Keith Collins, Greg Solomon, John Otstot, John I. Risinger, Eugene V. Koonin, J. Carl Barrett, Vladimir Larionov
Proc Natl Acad Sci U S A. 2004 Mar 2; 101(9): 3077–3082. Published online 2004 Feb 18. doi: 10.1073/pnas.0308532100