| article html file updated | 8 February 2020 15:57 CET | Update | https://www.mdpi.com/2224-2708/6/3/21 |
| article html file updated | 27 September 2019 02:07 CEST | Update | N/A |
| article html file updated | 3 May 2019 02:25 CEST | Update | N/A |
| article html file updated | 30 September 2017 15:31 CEST | Update | N/A |
| article html file updated | 15 September 2017 22:43 CEST | Update | N/A |
| article xml uploaded. | 15 September 2017 03:09 CEST | Update | https://www.mdpi.com/2224-2708/6/3/21/xml |
| article pdf uploaded. | 15 September 2017 03:09 CEST | Updated version of record | https://www.mdpi.com/2224-2708/6/3/21/pdf |
| article html file updated | 14 September 2017 11:21 CEST | Original file | N/A |
| article xml uploaded. | 14 September 2017 11:20 CEST | Update | N/A |
| article xml uploaded. | 14 September 2017 11:20 CEST | Original file | N/A |
| article pdf uploaded. | 14 September 2017 11:20 CEST | Updated version of record | https://www.mdpi.com/2224-2708/6/3/21/pdf-vor |
| article pdf uploaded. | 12 September 2017 11:58 CEST | Version of Record | https://www.mdpi.com/2224-2708/6/3/21/pdf-vor |
