| article html file updated | 8 February 2020 12:12 CET | Update | https://www.mdpi.com/2304-8158/6/8/59 |
| article html file updated | 26 September 2019 05:16 CEST | Update | - |
| article html file updated | 3 May 2019 09:41 CEST | Update | - |
| article html file updated | 27 March 2019 18:02 CET | Update | - |
| article html file updated | 29 November 2017 12:47 CET | Update | - |
| article xml uploaded. | 29 November 2017 12:46 CET | Update | https://www.mdpi.com/2304-8158/6/8/59/xml |
| article pdf uploaded. | 29 November 2017 12:46 CET | Updated version of record | https://www.mdpi.com/2304-8158/6/8/59/pdf |
| article html file updated | 1 September 2017 08:27 CEST | Update | - |
| article html file updated | 28 July 2017 08:14 CEST | Original file | - |
| article pdf uploaded. | 28 July 2017 08:12 CEST | Version of Record | https://www.mdpi.com/2304-8158/6/8/59/pdf-vor |
