主题：【已应助】求助英文文献4篇，请帮帮忙，谢谢啦！

【篇  号】：1
【题  名】：Inclusion compounds
【作  者】：Sylvan G. Frank
【期刊名全称】： Journal of Pharmaceutical Sciences., 
【文献页码】： Volume 64, Issue 10, pages 1585–1604, October 1975
【全文链接】:http://onlinelibrary.wiley.com/doi/10.1002/jps.2600641003/abstract

【篇  号】：2
【题  名】：The fractionation of marine-oil fatty acids with urea
【作  者】：Claude Domart, D. T. Miyauchi and W. N. Sumerwell
【期刊名全称】： Journal of the American Oil Chemists' Society ., 
【文献页码】： Volume 32, Number 9 (1955), 481-483, DOI: 10.1007/BF02639943
【全文链接】:http://www.springerlink.com/content/31nkq15277645854/

【篇  号】：3
【题  名】：Urea complexation for the rapid, ecologically responsible fractionation of fatty acids from seed oil
【作  者】：Douglas G. Hayes, Ylva C. Bengtsson, James M. Van Alstine and Fredrik Setterwall
【期刊名全称】： Journal of the American Oil Chemists' Society ., 
【文献页码】： Volume 75, Number 10 (1998), 1403-1409, DOI: 10.1007/s11746-998-0190-9
【全文链接】:http://www.springerlink.com/content/q16j867q2375t107/

【篇  号】：4
【题  名】：Highly unsaturated fatty acids. II. Fractionation by urea inclusion compounds
【作  者】：Ahmed M. Abu-Nasr, William M. Potts and Ralph T. Holman
【期刊名全称】： Journal of the American Oil Chemists' Society ., 
【文献页码】： Volume 31, Number 1 (1954), 16-20, DOI: 10.1007/BF02544764
【全文链接】:http://www.springerlink.com/content/x23534v810225u22/