المؤلفون: Robbins, Ken W., Olum, Ken D.

المساهمون: National Science Foundation

المصدر: Physical Review D ; volume 100, issue 10 ; ISSN 2470-0010 2470-0029

الاتاحة: http://dx.doi.org/10.1103/physrevd.100.103512
https://link.aps.org/article/10.1103/PhysRevD.100.103512
http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.100.103512/fulltext