Investigating the efficiency in oil futures market based on GMDH approach
- Type
- Retraction
- Notice date
- 4/2/2015 0:00
- Journal
- Expert Systems with Applications
- Publisher
- Elsevier
- Notice DOI
- 10.1016/j.eswa.2009.11.058
- Original paper DOI
- 10.1016/j.eswa.2008.09.055