http://reply.papertrans.cn/2/117/11647/11647-31.png
Submitted on: 25 December 2001.
Revised on: 18 January 2002.
Accepted on: 07 March 2002.
___________________Hungarian Journal of Industry and Chemistry
http://reply.papertrans.cn/2/117/11647/11647-33.png
Submitted on: 15 July 2004.
Revised on: 13 October 2004.
Accepted on: 24 November 2004.
___________________Hungarian Journal of Industry and Chemistry
Submitted on: 20 April 2001.
Revised on: 20 July 2001.
Accepted on: 27 August 2001.
___________________Hungarian Journal of Industry and Chemistry
Submitted on: 07 October 2017.
Revised on: 14 November 2017.
Accepted on: 27 December 2017.
___________________Hungarian Journal of Industry and Chemistry