| article html file updated | 9 February 2020 03:04 CET | Update | https://www.mdpi.com/2075-163X/8/1/21 |
| article html file updated | 29 September 2019 22:06 CEST | Update | N/A |
| article html file updated | 2 May 2019 02:13 CEST | Update | N/A |
| article html file updated | 18 April 2019 00:28 CEST | Update | N/A |
| article html file updated | 28 March 2019 15:36 CET | Update | N/A |
| article html file updated | 1 February 2018 09:52 CET | Update | N/A |
| article html file updated | 16 January 2018 04:08 CET | Update | N/A |
| article xml uploaded. | 16 January 2018 04:07 CET | Update | https://www.mdpi.com/2075-163X/8/1/21/xml |
| article pdf uploaded. | 16 January 2018 04:07 CET | Updated version of record | https://www.mdpi.com/2075-163X/8/1/21/pdf |
| article html file updated | 15 January 2018 08:39 CET | Original file | N/A |
| article xml uploaded. | 15 January 2018 08:38 CET | Update | N/A |
| article xml uploaded. | 15 January 2018 08:38 CET | Original file | N/A |
| article pdf uploaded. | 15 January 2018 08:38 CET | Version of Record | https://www.mdpi.com/2075-163X/8/1/21/pdf-vor |
