Submitted on: 10 May 2007.
Revised on: 26 May 2007.
Accepted on: 07 June 2007.
University Politehnica of Bucharest Scientific Bulletin Series B-Chemistry and Materials Science
Submitted on: 30 July 2001.
Revised on: 23 August 2001.
Accepted on: 04 September 2001.
University Politehnica of Bucharest Scientific Bulletin Series B-Chemistry and Materials Science
Submitted on: 19 September 2007.
Revised on: 03 October 2007.
Accepted on: 23 October 2007.
University Politehnica of Bucharest Scientific Bulletin Series B-Chemistry and Materials Science
http://reply.papertrans.cn/4/302/30176/30176-14.png
Submitted on: 25 July 2012.
Revised on: 11 August 2012.
Accepted on: 04 September 2012.
University Politehnica of Bucharest Scientific Bulletin Series B-Chemistry and Materials Science
http://reply.papertrans.cn/4/302/30176/30176-16.png
Submitted on: 07 February 2005.
Revised on: 07 March 2005.
Accepted on: 31 March 2005.
University Politehnica of Bucharest Scientific Bulletin Series B-Chemistry and Materials Science
http://reply.papertrans.cn/4/302/30176/30176-18.png
Submitted on: 06 November 2012.
Revised on: 12 December 2012.
Accepted on: 26 December 2012.
University Politehnica of Bucharest Scientific Bulletin Series B-Chemistry and Materials Science
http://reply.papertrans.cn/4/302/30176/30176-20.png