| article html file updated | 9 February 2020 04:22 CET | Update | https://www.mdpi.com/2227-7072/6/1/13 |
| article html file updated | 30 September 2019 05:33 CEST | Update | - |
| article html file updated | 1 May 2019 23:32 CEST | Update | - |
| article html file updated | 17 April 2019 22:06 CEST | Update | - |
| article html file updated | 28 March 2019 18:23 CET | Update | - |
| article html file updated | 26 March 2018 15:42 CEST | Update | - |
| article html file updated | 30 January 2018 07:21 CET | Update | - |
| article xml uploaded. | 30 January 2018 07:19 CET | Update | https://www.mdpi.com/2227-7072/6/1/13/xml |
| article pdf uploaded. | 30 January 2018 07:19 CET | Updated version of record | https://www.mdpi.com/2227-7072/6/1/13/pdf |
| article html file updated | 29 January 2018 06:55 CET | Original file | - |
| article xml uploaded. | 29 January 2018 06:53 CET | Update | - |
| article xml uploaded. | 29 January 2018 06:53 CET | Original file | - |
| article pdf uploaded. | 29 January 2018 06:53 CET | Updated version of record | https://www.mdpi.com/2227-7072/6/1/13/pdf-vor |
| article pdf uploaded. | 25 January 2018 17:18 CET | Version of Record | https://www.mdpi.com/2227-7072/6/1/13/pdf-vor |
