| article html file updated | 6 February 2020 12:43 CET | Update | https://www.mdpi.com/2304-8158/3/4/541 |
| article html file updated | 20 September 2019 13:37 CEST | Update | - |
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| article html file updated | 28 October 2014 03:25 CET | Update | - |
| article xml file uploaded | 28 October 2014 03:25 CET | Update | https://www.mdpi.com/2304-8158/3/4/541/xml |
| article html file updated | 24 October 2014 12:38 CEST | Original file | - |
| article xml file uploaded | 24 October 2014 12:38 CEST | Original file | - |
| article pdf uploaded. | 23 October 2014 11:08 CEST | Updated version of record | https://www.mdpi.com/2304-8158/3/4/541/pdf |
| article pdf uploaded. | 9 October 2014 14:27 CEST | Version of Record | https://www.mdpi.com/2304-8158/3/4/541/pdf-vor |
