المؤلفون: Sawyer, Leon D, Walters, Stephen M, DeCocco, F, DePalma, R, Ferm, R L, Grieb, J, Henderson, L, Maxstadt, J J, McCarthy, J, Nowak, G W, Pardue, J R, Richelieu, M E, Saudarg, D

المصدر: Journal of AOAC INTERNATIONAL ; volume 69, issue 5, page 847-851 ; ISSN 0004-5756

الاتاحة: https://doi.org/10.1093/jaoac/69.5.847
http://academic.oup.com/jaoac/article-pdf/69/5/847/32515593/jaoac0847.pdf

المؤلفون: Von Müller, H., Nowak, G. W.

المصدر: Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg ; volume 57, issue 1, page 27-32 ; ISSN 0025-5858 1865-8784

الاتاحة: http://dx.doi.org/10.1007/bf02941596
http://link.springer.com/content/pdf/10.1007/BF02941596.pdf
http://link.springer.com/article/10.1007/BF02941596/fulltext.html
http://link.springer.com/content/pdf/10.1007/BF02941596