| article html file updated | 9 February 2020 02:55 CET | Update | https://www.mdpi.com/2073-4344/8/1/21 |
| article html file updated | 29 September 2019 21:11 CEST | Update | N/A |
| article html file updated | 2 May 2019 02:32 CEST | Update | N/A |
| article html file updated | 18 April 2019 00:46 CEST | Update | N/A |
| article html file updated | 28 March 2019 15:14 CET | Update | N/A |
| article html file updated | 1 February 2018 10:09 CET | Update | N/A |
| article html file updated | 18 January 2018 04:29 CET | Update | N/A |
| article xml uploaded. | 18 January 2018 04:27 CET | Update | https://www.mdpi.com/2073-4344/8/1/21/xml |
| article xml uploaded. | 18 January 2018 04:27 CET | Update | N/A |
| article pdf uploaded. | 18 January 2018 04:27 CET | Updated version of record | https://www.mdpi.com/2073-4344/8/1/21/pdf |
| article html file updated | 12 January 2018 16:43 CET | Original file | N/A |
| article xml uploaded. | 12 January 2018 16:41 CET | Update | N/A |
| article xml uploaded. | 12 January 2018 16:41 CET | Original file | N/A |
| article pdf uploaded. | 12 January 2018 16:41 CET | Version of Record | https://www.mdpi.com/2073-4344/8/1/21/pdf-vor |
