المؤلفون: Palsson, Eirikur, Lee, Kyoung J., Goldstein, Raymond E., Franke, Jakob, Kessin, Richard H., Cox, Edward C.

المصدر: Proceedings of the National Academy of Sciences of the United States of America, 1997 Dec 01. 94(25), 13719-13723.

الوصول الحر: https://www.jstor.org/stable/43799Test

المؤلفون: Durston, Antony J.

المصدر: Proceedings of the National Academy of Sciences of the United States of America, 2013 Dec 01. 110(49), 19826-19831.

الوصول الحر: https://www.jstor.org/stable/23758318Test

المؤلفون: Bretschneider, Till, Siegert, Florian, Weijer, Cornelis J.

المصدر: Proceedings of the National Academy of Sciences of the United States of America, 1995 May 01. 92(10), 4387-4391.

الوصول الحر: https://www.jstor.org/stable/2367332Test

المؤلفون: Steinbock, Oliver, Siegert, Florian, Muller, Stefan C., Weijer, Cornelis J.

المصدر: Proceedings of the National Academy of Sciences of the United States of America, 1993 Aug 01. 90(15), 7332-7335.

الوصول الحر: https://www.jstor.org/stable/2362707Test

المؤلفون: Siegert, Florian, Weijer, Cornelis J.

المصدر: Proceedings of the National Academy of Sciences of the United States of America, 1992 Jul . 89(14), 6433-6437.

الوصول الحر: https://www.jstor.org/stable/2360024Test