المؤلفون: Prell, George D., Martinelli, Giorgio P., Holstein, Gay R., Matulić-Adamić, Jasenka, Watanabe, Kyoichi A., Morgan, Noel G., Haxhiu, Musa A., Ernsberger, Paul, Black, James W.

المصدر: Proceedings of the National Academy of Sciences of the United States of America, 2004 Sep . 101(37), 13677-13682.

الوصول الحر: https://www.jstor.org/stable/3373370Test

المؤلفون: Morgan, Noel G., Charest, Robert, Blackmore, Peter F., Exton, John H.

المصدر: Proceedings of the National Academy of Sciences of the United States of America, 1984 Jul 01. 81(13), 4206-4210.

الوصول الحر: https://www.jstor.org/stable/24167Test