| article html file updated | 6 February 2020 15:40 CET | Update | https://www.mdpi.com/1996-1073/8/2/1181 |
| article html file updated | 7 May 2019 01:31 CEST | Update | N/A |
| article html file updated | 25 March 2019 21:18 CET | Update | N/A |
| article html file updated | 21 August 2015 06:59 CEST | Update | N/A |
| article html file updated | 28 February 2015 03:09 CET | Original file | N/A |
| article xml file uploaded | 28 February 2015 03:09 CET | Original file | https://www.mdpi.com/1996-1073/8/2/1181/xml |
| article pdf uploaded. | 6 February 2015 13:11 CET | Updated version of record | https://www.mdpi.com/1996-1073/8/2/1181/pdf |
| article pdf uploaded. | 3 February 2015 13:07 CET | Version of Record | https://www.mdpi.com/1996-1073/8/2/1181/pdf-vor |
