| 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 | N/A |
| article html file updated | 7 May 2019 07:20 CEST | Update | N/A |
| article html file updated | 22 March 2019 02:16 CET | Update | N/A |
| article html file updated | 16 February 2017 03:42 CET | Update | N/A |
| article html file updated | 11 February 2017 05:51 CET | Update | N/A |
| article html file updated | 20 August 2015 22:29 CEST | Update | N/A |
| article html file updated | 28 October 2014 03:25 CET | Update | N/A |
| 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 | N/A |
| article xml file uploaded | 24 October 2014 12:38 CEST | Original file | N/A |
| 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 |
