Submitted on: 30 December 2003.
Revised on: 12 February 2004.
Accepted on: 28 February 2004.
Scientific Journal of Silesian University of Technology-Series Transport
Submitted on: 31 March 2010.
Revised on: 14 April 2010.
Accepted on: 08 May 2010.
Scientific Journal of Silesian University of Technology-Series Transport
Submitted on: 21 September 2018.
Revised on: 21 October 2018.
Accepted on: 08 November 2018.
Scientific Journal of Silesian University of Technology-Series Transport
http://reply.papertrans.cn/3/277/27676/27676-34.png
Submitted on: 18 August 2019.
Revised on: 06 September 2019.
Accepted on: 17 September 2019.
Scientific Journal of Silesian University of Technology-Series Transport
Submitted on: 28 March 2012.
Revised on: 13 April 2012.
Accepted on: 26 April 2012.
Scientific Journal of Silesian University of Technology-Series Transport